Letter book of Emanuel Mendes da Costa [(1717-1791) naturalist]: this volume contains...

CR 2017/TP408

Letter book of Emanuel Mendes da Costa [(1717-1791) naturalist]: this volume contains original letters from Thomas Pennant and drafts or copies of da Costa's replies. They reflect the writers' interest in mineralogy and mention of their subject matter has only been noticed when other topics have been raised. Pennant was primarily interested in fossils and minerals during the 1750's but by 1762 he had switched his attention to other aspects of natural history such as zoology and ornithology and the correspondence with da Costa gradually faded away, the last letter being written to Pennant in 1780. The final letters in the volume are those exchanged between Richard Pennant Baron Penrhyn and da Costa in the 1780's when the latter made up several mineral collections for his Lordship. Many of da Costa's letters are in the British Library.

1752-1788

It has been found necessary to number the letters.

The title page reads as follows: "Letters between Thomas Pennant Esq. and Emanuel Mendes da Costa. On subjects of Natural History; with a few other letters on the same subject from 1752-1778."

CR 2017/TP408/1 Thomas Pennant at Downing, unaddressed, to a friend of da Costa, [Roger Kinaston Esq., of Shrewsbury: See No.2] 8th March 1752, stating that he will be pleased to contribute anything to make Costa's History of Fossils as perfect as possible.

CR 2017/TP408/2 E.Mendes da Costa] in London to Thomas Pennant at Downing, 4th April 1752: opening the correspondence by seeking Pennant's help over fossils.

CR 2017/TP408/3 Thomas Pennant at Halston, April [said to be c. 26th April 1752] to [da Costa], answering da Costa's queries and telling him of his excursions into quarries and mines.

Loose: a list of fossils sent to [da Costa] with the latter's comments against them.

CR 2017/TP408/4 The same at Downing, to the same, unaddressed, 12th April 1752, with an endorsement stating that this was answered, 27th June 1752.

CR 2017/TP408/5 The same at Downing to [the same], 10th May 1752, with a catalogue of the fossils sent to da Costa in April 1752. The letter is endorsed by da Costa with the statement that he answered it in letters of 21st and26th May.

CR 2017/TP408/6 [Da Costa] in London to Thomas Pennant at Downing, 21st May 1752.

CR 2017/TP408/7 Thomas Pennant at Downing to [da Costa], 22nd May 1752. Endorsed by da Costa that this was answered in letters of 27 June 1752 and 1st Sept. 1752.

CR 2017/TP408/8 [Da Costa] in London to Thomas Pennant in Buxton, Derbys., 26th May 1752.

CR 2017/TP408/9 Thomas Pennant in Buxton to [da Costa], 29th May 1752, containing a sketch of the rockpits at Northwich [Cheshire]. The endorsement by da Costa states that this was answered 27th June 1752.

CR 2017/TP408/10 The same to [the same], 7th July 1752, mentioning that they are soon to meet, and go on an expedition together. The endorsement by da Costa states that this was answered 3rd October 1752.

CR 2017/TP408/11 [Da Costa] in London to Thomas Pennant at Downing, 27th June 1752.

CR 2017/TP408/12 W. Tilsley at Llandinam [Montgomeryshire] to the same at Downing, 22nd July 1752, sending him minerals and answering his queries.

CR 2017/TP408/13 Thomas Pennant at Downing to [da Costa], 24th July 1752,with da Costa's note that it was answered 3rd Oct. 1752.

CR 2017/TP408/14 The same at Downing to the same, merchant in London 17th Aug. 1752: da Costa had failed to meet him at Bangor as arranged. The endorsement states that this was answered 3rd October 1752.

CR 2017/TP408/15a "A catalogue of fossils sent to Mr. da Costa May 1752" in Pennant's hand, with annotations by da Costa.

CR 2017/TP408/15b "A catalogue of fossils in a third box sent to Mr. da Costa" in Pennant's hand with annotations by da Costa.

CR 2017/TP408/16 Thomas Pennant at Buxton to [da Costa], 2nd June 1752; he is going on a tour of the mountainous parts of Wales in July and suggests that da Costa accompany him. He would like da Costa to preserve his letters as until now he has not taken copies of them. With da Costa's note that this was answered 1st Sept 1752.

CR 2017/TP408/17 [Da Costa] in London to Thomas Pennant at Downing, 1st September 1752.

CR 2017/TP408/18 Thomas Pennant at Downing to da Costa, merchant, in London, 24th Sept. 1752. The endorsement by da Costa states that this was answered 3rd October 1752.

CR 2017/TP408/19 The same at Buxton to the same merchant, in London, 6th October 1752, sending him a catalogue and mentioning he has had the company of the Mundys of Shipley who are acquaintances of da Costa. Da Costa's endorsement states that this was answered 26th October 1752.

CR 2017/TP408/20 [Da Costa] in London to Thomas Pennant at Downing, 1st and 3rd October 1752, giving family reasons for his inability to stay at Downing in the summer.

CR 2017/TP408/21 "Catalogue of the fossils yesterday per Chester waggon sent in a box directed to Thomas Pennant esq. of Downing... to be left at Mrs. Myttons in Joss Lane, Chester". in da Costa's hand.

CR 2017/TP408/22 Catherine Pennant from Downing to da Costa, merchant in London, 6th Oct. 1752 referring to an enclosure from her brother which informs da Costa when the box of fossils will be in London.

CR 2017/TP408/23 A note asking for information in the hand of Thomas Pennant addressed to William Middleton (sic) at the Navy Office, London, and endorsed by da Costa to the effect that this was answered in his letter of 26th October 1752. To which has been attached a small note from da Costa to Wm. Middylton (sic)Esq. at "No. CR 2017/10 facing Temple Church door", enclosing a letter for "our friend Pennant".

CR 2017/TP408/24 [Da Costa] in London to Thomas Pennant at Downing, 26th Oct. 1752, with a note to say that the letter was forwarded "by Will. Myddylton".

CR 2017/TP408/25 Thomas Pennant in Buxton to da Costa, merchant, in London, 26th October 1752: his experiments on calamine. Da Costa's endorsement states that this was answered 7th December 1752.

CR 2017/TP408/26 "A catalogue of fossils sent to Mr. da Costa in Novr. 1752" Pennant has added a note at the end of thislist which is not otherwise in his hand. Da Costa states that this was answered 16th Dec. 1752.

CR 2017/TP408/27 Thomas Pennant at Downing to [da Costa], 17th November 1752. Da Costa's endorsement states that this was answered 7th December 1752.

CR 2017/TP408/28 Note in da Costa's hand of a list of fossils numbered 33-42, being a copy of an original signed by Pennant.

CR 2017/TP408/29 "A catalogue of fossils and other curiosities 1752" with a letter from T.Needham in Turin, 8th Oct. (new style) 1751, to da Costa merchant in London, being a list of what Needham intends to send him from Genoa. Endorsed "I did not answer this letter".

CR 2017/TP408/30 "A catalogue of the fossils presented to the Revd. Dr. Richard Pococke" with a copy letter from [da Costa] to him in Great Grosvenor St. from Adams Court in Broad St.

CR 2017/TP408/31 "The collection of fresh water shells from the river Thames gather'd from Wandsworth to Windsor by the hands of Mrs. Mary Standley now in the collection of her Grace the Duchess of Portland "[hand of da Costa].

With a note that he made this list at the request of the Duchess whilst at their Graces' seat at Bullstrode, Bucks., Nov. 1752.

CR 2017/TP408/32 Catalogue of fossils, minerals and shells found in the neighbourhoods of Turin, Asti, Piedmont, etc., with explanatory notes written in French and annotations by da Costa.

CR 2017/TP408/33 [Da Costa] in London to Thomas Pennant at Downing, 7th Dec. 1752, mentioning the naturalists Hill and Grew.

CR 2017/TP408/34 [Da Costa] in London to Thomas Pennant at Downing, 16th Dec. 1752.

CR 2017/TP408/35 List of minerals in Pennant's hand with a few annotations by da Costa.

CR 2017/TP408/36 Thomas Pennant at Downing to [da Costa], 24th Dec. 1752 referring to Hill and Grew and endorsed by da Costa "I answered the chief contents of this letter by word of mouth Mr.Pennant soon after coming to town".

CR 2017/TP408/37 John Hughes to Thomas Pennant at Downing, undated, concerning calamy [?calamine].

CR 2017/TP408/38 Sketches and notes by Pennant of fossil specimens, etc.

CR 2017/TP408/39 T[homas]P[ennant] at Cleveland Court, to [da Costa], 12th April 1753, asking for some of his specimens. Da Costa states he did not answer this.

CR 2017/TP408/40 Thomas Pennant to da Costa"at the Bank Coffee house behind the Exchange", enclosing Crispe's account of the Soap Rock (2 miles north of the Lizard). Da Costa has written on this "Letter from T.Pennant & was of 12th May 1753".

CR 2017/TP408/41 [Da Costa] in London to the Revd. R.Watkins, Vice-Principal of St.Mary's Oxford, 22nd May 1753, asking him to procure for Pennant a visit to the Ashmolean to see Mr.Lhuyd's collection of "figured fossils", Dr. Thomas Shaw's cabinet and other fossils there.

Three letters from the same to Thomas Pennant at Richmond and in Oxford of 20th, 21st and 22nd May 1753: about Pennant's visit to Oxford.

CR 2017/TP408/42 Part of a letter from [Thomas Pennant] to da Costa reporting his visit to Oxford, undated.

CR 2017/TP408/43 Thomas Pennant in Bath to [da Costa], 28th May 1753: da Costa states that this was answered 19th June 1753.

CR 2017/TP408/44 [Da Costa] in London to [Thomas Pennant], 2nd June 1753.

CR 2017/408/45 The same in London to the same at Downing, 19th June 1753, which he states Pennant answered 6th July.

CR 2017/TP408/46 [The same] in London to the same at Downing, 15th July 1753.

CR 2017/TP408/47 Thomas Pennant at Downing to [da Costa] 24th July 1753: with da Costa's note that this was answered 2nd August 1753.

CR 2017/TP408/48 [Da Costa] in London to Thomas Pennant at Downing, 2nd August 1753.

CR 2017/TP408/49 T[homas] Pennant at Downing to [da Costa], 7th August 1753.

CR 2017/TP408/50 [Da Costa] in London to Thomas Pennant at Downing, 14th August 1753: which Pennant answered 2nd Sept, 1753.

CR 2017/TP408/51 Two lines in Welsh.

CR 2017/TP408/52 T[homas] Pennant in Preston to [da Costa], 21st August 1753. Da Costa's endorsement states that it was answered 15th September 1753. Pennant mentions his visit to Edward Rawstorne esq. of Clifton Lanes,,who gave him some fossils.

CR 2017/TP408/53 The same at Downing to [da Costa], 2nd September 1753: asking when da Costa's book is to be published etc. Da Costa's endorsement states that this was answered 15 Sept. 1753

CR 2017/TP408/54 [Da Costa] in London to Thomas Pennant at Downing, 15th September 1753, the first volume of his book should come out this year.

CR 2017/TP408/55 T[homas] Pennant at Downing to [da Costa] 20th September 1753.

CR 2017/TP408/56 [Da Costa] in London to Thomas Pennant at Downing, 27th September 1753.

CR 2017/TP408/57 T[homas] Pennant at Downing to [da Costa] 3rd October 1753.

CR 2017/TP408/58 "Some fossils from Ireland particularly from the Lake called Neagh & some places not very distant from it". Da Costa noted that "this paper belongs to Pennant's letter of 20th Sept. 1753". The list is not in Pennant's hand and has annotations by da Costa.

CR 2017/TP408/59 "Fossils lent to Mr. da Costa October the 3rd 1753", not in Pennant's hand but with additions and annotations by him and da Costa.

CR 2017/TP408/60 Postscript from [Pennant]of October 5th: referring to his experiments.

CR 2017/408/61 T[homas] Pennant at Downing to da Costa, 19th October 1753, with a note that this was answered 31st October.

CR 2017/TP408/62 Da Costa in London to Thomas Pennant at Downing, 23rd October 1753, with a note that Pennant answered this letter 13th November 1753. [Not in da Costa's hand].

CR 2017/TP408/63 [The same] in London to Thomas Pennant at Downing, 8th November 1753, with a note that Pennant answered it 13th November 1753.

CR 2017/TP408/64 T[homas] Pennant at Downing to [da Costa], 13th November 1753, which da Costa answered 1st or 4th December 1753.

CR 2017/TP408/65 [Da Costa] unaddressed to T.Pennant at Downing, 17th November 1753, with da Costa's note that Pennant answered it 23rd November.

CR 2017/TP408/66 [The same] in London to Thomas Pennant at Downing, 31st October 1753. With da Costa's note that Pennant answered it 13th November.

CR 2017/TP408/67 T[homas] Pennant, unaddressed to [da Costa], 23rd November 1753. With da Costa's note that this was answered 1st or 4th December, 1753.

CR 2017/TP408/68 [Da Costa] to Thomas Pennant at Downing, 1st or 4th December 1753. With da Costa's note that Pennant answered it 8th December 1753.

CR 2017/TP408/69 Thomas Pennant at Downing to [da Costa], 8th December 1753. With da Costa's note that this was answered 18th December 1753.

CR 2017/TP408/70 [Da Costa] in London to Thomas Pennant at Downing, 18th December 1753. With da Costa's note that Pennant answered 28th December 1753.

CR 2017/TP408/71 D[a] C[osta] in London to the same at Downing, 22nd December 1753, mentioning Fr.Gravina. With da Costa's note that it was answered 28th December 1753.

CR 2017/TP408/72 T[homas] Pennant at Downing to [da Costa], 28th December 1753. He mentions that he has written to Padre Gravina.

CR 2017/TP408/73 The same at Downing to [the same], 18th December 1753. With da Costa's note that it was answered 22nd December 1753. Pennant mentions that he is building a furnace "which will serve for most metallurgic tryalls" and that Mr.Kynaston has attempted to start a correspondence between himself and Padre Gravina.

CR 2017/TP408/74 The same at Downing to [the same], 21st December 1753. With da Costa's note that it was answered 3rd January 1754.

CR 2017/TP408/75 [Da Costa] in London to Thomas Pennant at Downing, 3rd January 1754, referring to Gravina. With da Costa's note that this was answered 8th January 1754.

CR 2017/TP408/76 [Thomas Pennant] to [the same], : part of the letter of 28th December 1753, sending him observations made on the fossils known to the ancients so that his book can be decked with a little classical learning as is that of his rival, Dr.Hill(who has been mentioned in previous letters)

CR 2017/TP408/77 Part of a catalogue of minerals and fossils numbered 32-66 and of sands in Pennant's hand with annotations by da Costa who states at the top "Per letter of 10th January 1754".

CR 2017/TP408/78 Thomas Pennant at Downing to [da Costa], 8th January 1754.

CR 2017/408/79 "Fossils sent to Mr. Da Costa January 1754" a list which was sent with the above letter. Part of Da Costa's letter about this, undated. Note of da Costa's that this was answered 15th January.

CR 2017/TP408/80 [Da Costa] in London to Thomas Pennant at Downing, 15th January 1754.

CR 2017/TP408/81 "A catalogue of fossils lent to Mr. da Costa, and to be returned on demand" in Pennant's hand.

CR 2017/TP408/82 "1754 Feby. 1. A list of such fossells I have by me for Mr. De Costa" not in Pennant's hand.

CR 2017/TP408/83 [Da Costa] in London to Thomas Pennant at Downing, 2nd February, 1754, containing a copy of his letter in Italian to the Jesuit, Fr. Gravina.

CR 2017/TP408/84 T[homas] Pennant at Downing to [da Costa], 10th Feb. 1754: mentioning Borlase [as earlier letters have done] begging Da Costa not to be so fulsome in his praise of him in his publication; and stating that he has secured him another subscriber. With da Costa's note that this was answered 12th February 1754.

CR 2017/TP408/85 The same at Downing to [the same], 15th February 1754. With da Costa's note that this was answered 5th March 1754.

CR 2017/TP408/86 [Da Costa] in London to Thomas Pennant at Downing, 12th February 1754.

CR 2017/TP408/87 Thomas Pennant at Downing to [da Costa], 19th February 1754.

CR 2017/TP408/88 [Da Costa] in London to Thomas Pennant at Downing, 5th March 1754: Da Costa's work "has been set forth with great encomiums in all the literary German gazettes".

CR 2017/TP408/89 [The same] in London to the same at Downing, 15th March 1754.

CR 2017/TP408/90 [The same] in London to the same at Downing, 26th March 1784.

CR 2017/TP408/91 T[homas] Pennant at Downing to [da Costa], 29th March 1754. With da Costa's endorsement "Not answered".

CR 2017/TP408/92 The same at Downing to [the same], 8th March 1754.

CR 2017/TP408/93 The same at Downing to [the same], 22nd March 1754, mentioning that he hopes to extend his foreign correspondence by means of a young gentleman now abroad whom he hopes to supply with proposals for a "fossil commerce". With da Costa's note that this was answered 26th March 1754.

CR 2017/TP408/94 The same at Hadley to [the same], 12th May 1754. With da Costa's note that this was answered 14th May 1754.

CR 2017/TP408/95 Account for Mr. da Costa for fossils from Italy, undated in T.Needham's hand.

CR 2017/TP408/96 "Catalogus contentorum" sent in May 1754 and listing mineral specimens and books. With annotations in French.

CR 2017/TP408/97 T[homas] P[ennant] at The Temple to [da Costa], 29th April 1754.

CR 2017/TP408/98 T[homas] Pennant at Holyhead to [the same], 26th June 1754, he is on his way to Dublin and "I will not forget my promises for no dispute shall alter me in that point: and indeed if I can assist your work by any observations from Ireland I will do it still". With da Costa's note "Ans. 25 July 1754".

CR 2017/TP408/99 Advertisement of the publication (in Pennant's hand) of the first volume of da Costa's "Natural History of Fossils".

CR 2017/TP408/100 List in hand of da Costa of fossils from Bohemia on back of which Pennant has written scathing comments stating that none of the specimens are good ones.

CR 2017/TP408/101 [Da Costa] in London to Thomas Pennant at Downing, 22nd Aug. 1754: about Da Costa's impatience for Pennant's safe return from Ireland for he thinks "great benefits will accrue to literature from your journey".

CR 2017/TP408/102 [The same] in London to Thomas Pennant at Downing, 25th July 1754: he declines answering "the above disagreable letter" for amongst the specimens sent, there were two which were really rare.

CR 2017/TP408/103 [The same] in London to the same at Downing, 27th September 1754: as he has not heard from him, he presumes he has not yet returned from his Irish trip. Da Costa has been made a member of Imperial Academy of Sciences in Germany. With da Costa's note that Pennant answered this letter 11th October 1754.

CR 2017/TP408/104 [The same] unaddressed and undated to [the same]: wishing him success in his tour of Ireland.

CR 2017/TP408/105 [The same] in London to the same at Downing, 29th October 1754: Da Costa's fears that the Irish trip though agreeable did not come up to Pennant's expectations.

CR 2017/TP408/106 T[homas] Pennant at Downing to [the same] 2nd Nov. 1754, he can assist da Costa in the loan of"a large parcel of Irish gems"; the letter also contains a description of the Giant's Causeway. With da Costa's note that he answered this 12th November 1754.

CR 2017/TP408/107 [Da Costa] in London to Thomas Pennant at Downing, 12th November 1754.

CR 2017/TP408/108 Thomas Pennant at Downing to [da Costa], 22nd November 1754.

CR 2017/TP408/109 A list of "fossils lent Mr. Da Costa" in Pennant's hand with annotations by da Costa.

CR 2017/TP408/110 [Da Costa] in London to Thomas Pennant at Downing, 7th December 1754: congratulating him on his election to the Society of Antiquaries.

CR 2017/TP408/111 Thomas Pennant at Downing to [da Costa] 10th December 1754, with da Costa's endorsement that it was answered 26th December 1754.

CR 2017/TP408/112 Note from the above about a reference given him by Mr.Borlase, from Downing 15th December 1754.

CR 2017/TP408/113 The same 11th May 1754, to[da Costa], with da Costa's note that this was answered the same day.

CR 2017/TP408/114 The same, to [the same], 4th May 1754.

CR 2017/TP408/115 "Queries for my own use"; two, in the hand of Thomas Pennant.

CR 2017/TP408/116 Note in the hand of Pennant concerning granite to which da Costa has added a reference. Endorsed as December 1754.

CR 2017/TP408/117 [Da Costa], in London to Thomas Pennant at Downing, 26th December 1754.

CR 2017/TP408/118 Thomas Pennant at Downing to [da Costa], 10th January 1755, with notes from da Costa thereon including one stating that as Pennant came to London the next week this letter was not answered.

CR 2017/TP408/119 The same to da Costa, 24th March 1755. With da Costa's note that this was answered the same day.

CR 2017/TP408/120 [Da Costa], in London to Thomas Pennant, 31st March 1755.

CR 2017/TP408/121 T[homas] Pennant to [da Costa], 3rd April 1755 and endorsed by Da Costa as being answered 7th April 1755

CR 2017/TP408/122 [Da Costa] to Thomas Pennant at James Mytton Esq's in Richmond, Surrey, 7th April 1755.

CR 2017/TP408/123 Thomas Pennant at Richmond [Surrey] to [da Costa] 9th April 1755 and endorsed by Da Costa as being answered 15th May 1755.

CR 2017/TP408/124 [Da Costa] in London to Thomas Pennant at Downing 15th May 1755, chiding him for being less accurate in his experiments than formerly.

CR 2017/TP408/125 [The same] in London to the same at Downing, 10th June 1755.

CR 2017/TP408/126 Thomas Pennant at Downing to [da Costa] 13th June 1755 who endorsed it as being answered 26th June 1755: Pennant states that he had erred through following Da Costa's rival's principles.

CR 2017/TP408/127 [Da Costa] in London to Thomas Pennant at Downing, 26th June 1755: Pennant's errors are not surprising because Hill and the German chemists and mineralists have fallen into the same trap. With a note in French recommending Pennant to Jean Bohadsch Imperial Professor of Natural History and Doctor in Medicine at Prague, Bohemia.

CR 2017/TP408/128 [The same] in London to the same at Downing, 3rd July 1755.

CR 2017/TP408/129 Thomas Pennant at Downing to da Costa at the Friday St. Coffee house in Friday St. Cheapside, London, 15th July 1755, with da Costa's endorsement that it was answered 22nd July 1755: asking da Costa to translate two letters (given) into Italian for him.

CR 2017/TP408/130 T[homas] Pennant at Downing to [the same], 8th July 1755, with an endorsement stating that this letter was answered 22nd July, 1755.

CR 2017/TP408/131 [Da Costa] in London to Thomas Pennant at Downing, 22nd July 1755.

CR 2017/TP408/132 Tho[mas] Pennant at Downing to [da Costa], 8th August 1755, with da Costa's note that it was answered 23rd August 1755.

CR 2017/TP408/133 [Da Costa] to Thomas Pennant at Downing, 23rd August 1755.

CR 2017/TP408/134 Thomas Pennant at Downing to da Costa, 5th December 1755, with his note that it was answered 20th January 1756.

CR 2017/TP408/135 [Da Costa] in London to Thomas Pennant at Downing, 20th January 1756.

CR 2017/TP408/136 T[homas] Pennant at Downing to [da Costa], 1 January 1756. with da Costa's note that this was answered 20th January 1756; the letter mentions Gravina's catalogue.

CR 2017/TP408/137 The same to [the same] with da Costa's note that this was sent with Pennant's letter of 27th January 1756.

CR 2017/TP408/138 The same at Richmond [Surrey], to the same, 21st May 1756, with a note that it was answered 3rd July 1756.

CR 2017/TP408/139 Da Costa's copy of a letter from Carolus Linnaeus at Upsala to Thomas Pennant, 3rd December 1756 (Latin).

CR 2017/TP408/140 Da Costa in London to Thomas Pennant at Downing, 3rd July 1756, mentioning that the interruption in their correspondence has not been caused by da Costa's wish or neglect.

CR 2017/TP408/141 T[homas] Pennant at Downing to [da Costa], 1st August 1756, with the latter's note that this was answered by word of mouth. His surprise at receiving da Costa's letter for it was da Costa who had not written to him for 6 months. Pennant is now going abroad for about three weeks.

CR 2017/TP408/142 The same at Richmond [Surrey] to [the same], 29th March 1757. With da Costa's note that it was answered 2nd April 1757.

CR 2017/TP408/143 The same to [the same], 20th March 1757. With da Costa's note that it was answered 25th March 1757.

[Nos. 143 and 144 were found loose here].

CR 2017/TP408/144 [Da Costa] in Bearbinder Lane to Th[omas] Pennant, 25th March 1757 (part only).

CR 2017/TP408/145 [The same] in London to the same at Mr.Myttons at Richmond, Surrey, 2nd April 1757, wishing to know what "this affair" with Linnaeus is all about.

CR 2017/TP408/146 T[homas] Pennant at Richmond [Surrey] to [da Costa], 9th April 1757, with da Costa's note that it was answered 18th April 1757, promising to show him Linnaeus' letter very soon.

CR 2017/TP408/147 [Da Costa] in London to Thomas Pennant at Mr.Mytton's Richmond, Surrey, London, 18th April 1757.

CR 2017/TP408/148 [The same] in London to the same at the same address, 6th May 1757, returning to Pennant two letters from Linnaeus "the first shews to the life the ectasies bordering upon madness of a confirmed virtuoso on a new acquisition". The 2nd letter he has copied: [ this is presumably No. CR 2017/139 above]. The original of this letter is with CR 2017/TP204.

CR 2017/TP408/149 T[homas] Pennant at Downing to [da Costa], 23rd August 1757 with the latter's note that it was answered 27th August 1757: on a book of da Costa's a copy of which he has just received. The honour Pennant feels at having his paper published by the Society Bishop Pontoppidan is mentioned.

CR 2017/TP408/150 [Da Costa] in London to Thomas Pennant at Downing, 27th August 1757, on his own publication.

"Mr. Brander [Gustavus Brander (1720-1787) merchant and antiquary] has given his whole collection to the British Museum. I was there some time ago & you cannot imagine what a noble collection of fossils Sr Hans [Sloane] had".

CR 2017/TP408/151 T[homas] Pennant at T.Anson Esq's at Shugborough near Heywood [Haywood] Staffs. to[the same], 14th September 1757, with da Costa's note that it was answered 4th October 1757, [part missing].

CR 2017/TP408/152 [Da Costa] in London to Thomas Pennant, at Downing, 4th October 1757; about corrections to da Costa's work. He has lately had presented to him many of Mr.Lhuyd's papers many of which are about Welsh history and antiquities.

CR 2017/TP408/153 T[homas] P[ennant] to [da Costa], 7th March 1758, with the latter's note that this was answered 20th July 1758.

CR 2017/TP408/154 [Da Costa] in London to Thomas Pennant at Downing, 20th July 1758, with a note that Pennant answered it 16th September 1758, with another of the same date from Tooting, Surrey.

CR 2017/TP408/155 T[homas] Pennant at Downing to [da Costa] said to have been written by the latter on or about 16th September 1758 and answered 10th October 1758.

He is much pleased with Borlase's History.

CR 2017/TP408/156 [Da Costa] in Tooting, Surrey, to Thomas Pennant at Downing, 10th October 1758,Borlase's book has not lived up to da Costa's expectations.

CR 2017/TP408/157 [The same] in London to the same at Downing 21st November 1758.

CR 2017/TP408/158 "Remarks on some marbles received from Florence" in the hand of Pennant, with annotations by da Costa and a letter from Pennant on the same paper, at Downing to [da Costa], 21st October 1758, with da Costa's note that this was answered 21st November 1758.

CR 2017/TP408/159 T[homas] Pennant at Downing to [da Costa], 26th November 1758, with da Costa's note that this was answered 5th December 1758.

CR 2017/TP408/160 Giuseppe di Gravina S.J. in Palermo to [?Pennant], 6th May 1763, wishing to open their correspondence and to exchange specimens now that the war is over.

He refers to da Costa [Found loose].

CR 2017/TP408/161 [Da Costa] in London to Thomas Pennant at Downing, 5th December 1758, with a note that Pennant replied 11th December 1758.

CR 2017/TP408/162 [The same] in London to [the same] at Downing, 7th February 1760, expressing his concern at the long silence between them. He has heard of Pennant's marriage, however, and thinks this must account for it.

CR 2017/TP408/163 T[homas] Pennant at Downing to da Costa at Mr.Davis' in Bearbinder Lane near the Mansion House, 31st March 1760, with a note that this was answered 8th July 1760: his marriage has indeed been the cause of his neglect of his correspondence. He has been illustrating "Linnaeus' new syst. Nat: by figures cut out of books of Nat. History & pasted on paper".

CR 2017/TP408/164 [Da Costa] in London to Thomas Pennant at Chester, 8th July 1760: he has now moved to Capt.Dun's in Little Bell Alley, Coleman St.

CR 2017/TP408/165 T[homas Pennant at Bychton to [da Costa], 2nd July 1762: he has now completed his collection of fossils and so has turned to another branch of natural history forming the design of a work on British Natural History which he has placed under the protection of the Cymmrodorion Society and which is to be compiled by several persons. He seeks da Costa's advice as to the best views of Spain, particularly of Moorish architecture, on a Swedish work, etc. He has found Linnaeus to be fallible and incomplete. He left the Royal Society because "my patience was exhausted at their shamefull neglect of the end of their institution".

With da Costa's note that it was answered 12th August 1762.

CR 2017/TP408/166 [Da Costa] in London, to Thomas Pennant at Bychton, 12th August 1762: begging him not to give up his interest in fossils completely, now that he has turned to zoology, and answering the above.

CR 2017/TP408/167 [The same] in London to the same at Chester, 13th April 1762: his unhappiness that their correspondence has lapsed.

CR 2017/TP408/168 T[homas] Pennant at Bychton to [da Costa], 14th September 1762, with da Costa's note that it was answered 16th November 1762.

CR 2017/TP408/169 Page containing pen and wash drawings of fossils.

CR 2017/TP408/170 [Da Costa] in London to Thomas Pennant at Bychton, 16th November 1762.

CR 2017/TP408/171 T[homas] Pennant at Bychton to [da Costa], 26th November 1762, with da Costa's note that it was answered 7th December 1762.

CR 2017/TP408/172 [Da Costa] in London to Thomas Pennant at Bychton, 7th December 1762.

CR 2017/TP408/173 Tho[mas] Pennant at Bychton to da Costa at "the Bank Coffee house behind the Royal Exchange London", 16th December 1762, with da Costa's note that this was answered 9th Feb. 1763. Loose.

CR 2017/TP408/174 The same at Bychton to [da Costa], 29th January 1763, with the latter's note that it was answered 9th February 1763.

CR 2017/TP408/175 D[a] C[osta] in London to Thomas Pennant at Bychton 9th February 1763: he has been elected librarian of the Royal Society [Loose].

CR 2017/TP408/176 A description of another species of jaculator Fish in Latin and English in the hand of Mendes da Costa who translated it from the Latin. The fish had been sent by John Albert Schlosser of Amsterdam to the Royal Society.

CR 2017/TP408/177 Tho[mas] Pennant at Downing to [da Costa], 1st January 1773, with his note that it was answered 16th January 1773.

CR 2017/TP408/178 [Da Costa] in London to Thomas Pennant (unaddressed) 16th January 1773, with the former's note that Pennant answered it 24th January 1773. (not complete).

CR 2017/TP408/179 Tho[mas] Pennant (not addressed) to da Costa at Mr.Fladgate's in Swallow St., London, 24th January 1773, with the latter's note that this was answered 6th February 1773: it refers to the 3rd volume of Pennant's British Zoology and to his Genera of Birds "now printing at Edinburgh".

CR 2017/TP408/180 [Da Costa] in London to Thomas Pennant at Downing, 26th December 1772: begging a renewal of their correspondence which had lapsed owing to Da Costa's misfortunes and Pennants new interests.

CR 2017/TP408/181 Abstracts in da Costa's hand from Pennant's letter of 12th February 1773.

CR 2017/TP408/182 [Da Costa] in London to Thomas Pennant via Sir Roger Mostyn at Mostyn 14th December 1773.

CR 2017/TP408/183 T[homas] Pennant at Downing to [da Costa], 29th October 1773, with the latter's note that this was answered 14th December 1773.

CR 2017/TP408/184 [Da Costa] in London to Thomas Pennant at Downing 17th December 1776,which he answered 22nd December: regretting the lapse in their correspondence and sending him the proposals for the writer's "British Conchology" which will soon be in the press and for which he seeks Pennant's subscription.

CR 2017/TP408/185 [Thomas Pennant] to [da Costa] 18th June 1779: he is ordering a single coloured copy of da Costa's "British Conchology" [the second half of the letter has been torn away].

CR 2017/TP408/186 [Da Costa] in London to Thomas Pennant at Downing, 6th July 1779:he has sent him"British Conchology" and now thinks of completing his history of fossils if he can get patronage for this. With da Costa's note that it was answered 15th July 1779.

CR 2017/TP408/187 The same in London to T[homas] P[ennant] at Downing, 17th October 1780, sending Pennant his proposal for the publication on fossils and asking for his opinion on it.

CR 2017/TP408/188 Note in Da Costa's hand of experiments with ore at the top of which is written "Richard Pennant Esqr. who presented me with a guinea May 1782".

CR 2017/TP408/189 Notes made from a book in Pennant's hand headed "Olaffen [(sic) ?Eggert Olafsson]: Reise durch Iseland"endorsed by da Costa: "Letter of T.Pennant Esqr. to Mr.William Hudson about June 1785 answered 27th July 1785".

CR 2017/TP408/190 [Richard] Pennant in Grosvenor Square to da Costa, 23rd April 1783: noted by the latter that he became Lord Penrhyn in 1784.

CR 2017/TP408/191 Da Costa at May's Buildings, St.Martin's Lane near Charing Cross to Lord Penrhyn at Grosvenor Square, 2 April 1787, on letting his Lordship have some fossils.

CR 2017/TP408/192 The same at May's Buildings, 13 St.Martin's Lane to the same at Winington (sic) near Northwich, Cheshire, 29 June 1786: he has now made a collection of fossils for his Lordship of 102 "pick'd and instructive specimens" for 7 guineas. The object of the collection was to inform Lord Penrhyn's tenants "in mineral researches".

CR 2017/TP408/193 Richard, Lord Penrhyn at Winnington (sic) to (da Costa), 5 July 1786, answering the above.

With da Costa's note that this answered 18th July 1786.

CR 2017/TP408/194 Note from the above to [da Costa] on which the latter has written that it was written 11th April 1787 and answered 18th April 1787.

CR 2017/TP408/195 Da Costa in London to Richard Lord Penrhyn at Penrhyn, Caerns, 16th Aug. 1787, sending him "a box of such fossils that accompany and indicate the presence of mines of metals" (with a list of these).

CR 2017/TP408/196 Richard, Lord Penrhyn at Winnington to[da Costa], 5th June 1787, asking for more fossils. With da Costa's note that this was answered 16th August 1787.

CR 2017/TP408/197 [Da Costa] at 13 May's buildings (sic), St.Martin's Lane to Richard, Lord Penrhyn in Grosvenor Square, 18th April 1787.

CR 2017/TP408/198 [The same] at May's Buildings, 13 St.Martin's Lane to the same via P.Marrow broker of Liverpool, 18th July 1786, on sending his Lordship a box of minerals.

CR 2017/TP408/199 [The same] at Strand no.463 at Baster's Manufactory opposite Hungerford Market to the same, 18th March 1788: mentioning the minerals he sent his Lordship last July.

CR 2017/TP408/200 Richard, Lord Penrhyn in Grosvenor Square to da Costa, at no.463 Strand, 15th April 1788, asking his advice about a mineral from Jamaica, with da Costa's reply of 15th April 1788.

CR 2017/TP408/201 [Da Costa] to ?Thomas Pennant. The final page of a letter, undated and unaddressed.

English