Folios 77-82: CB number 01368 O.X.O, Copy number 30, UC.55 Interrogation of Survivors, October 1917.
Folio 75: Cover sheet, UC.55.
Folio 76: Table of Contents.
Folio 76: Crew of UC.55. A nominal list of seventeen Prisoners of War the senior being Sub-Lieutenant of the Reserve Herbert Sauer. A list of ten Officers and Men killed including the captain, Lieutenant Ruhle von Lilienstern.
Folio 76: Previous cruises of UC.55. UC.55 was built at the Imperial Dockyard, Danzig, and commissioned on 15 November 1916. (1) North Sea. (2) March 1917 laid 18 mines off Orkneys. (3) April 1917 laid 18 mines off Orkneys and sank a Norwegian steamer. (4) May 1917 proceeded via English Channel to the West Coast of Ireland, laying mines and returned via Shetlands to Bunrunsbuttel. Sank vessels by bombs and torpedoes. (5) July 1917 laid 18 mines off East Coast of England. Sank two vessels by bomb and by torpedo. (6) August 1917 proceed via English Channel and laid 18 mines West Coast of Ireland returning via the Orkneys. Sank one steamer.
Folio 77: Last cruise of UC.55. Sailed with 18 mines and 6 torpedoes. Arrived off the Shetlands on 24 September 1917 and compelled to dive by a British trawler. When about to lay mines, lost trim and bean to sink. Water entered hull but blew tanks and surfaced. Destroyers arrived and opened fire. Commanding Officer ordered abandon ships. Submarine hit by gunfire and sank.
Folio 77: UC.55 belonged to the class UC.16-79. When carrying six torpedoes, two spares stowed abaft the tubes and one spare below engine room.
Folios 77-78: Cruises of other submarines. U.24 Sank HMS Formidable. U.78 Laid mines in Bristol Channel. UC.16 cruises in Atlantic and English Channel. UC.32 Laid mines off Flamborough Head and Middlesboro. UC.40 Laid mines off Blyth and Sunderland. UC.43 Laid mines off Flamborough Head & Whitby. UC.77 Laid mines off Firth of Forth.
Folio 78: Other Submarines. Class U.51-U.62 has two bow and two stern torpedo tubes and eight reserve torpedoes. Class U.71-U.80 is large minelayers known as 'E' boats. Details provided. U.114 is believed to be highest numbered. UB.48 Class are improved type.
Folio 78: Submarine 'Deutschland' now called U.155 and fitted with two 5.9-in guns.
Folio 79: UB and UC boats provided with sound signalling, effective up to 3 miles and can distinguish up to three different vessels. Supposed to dive to 330 feet.
Folio 79: Organisation of Submarine Service. First Submarine Flotilla at Brunsbuttel. Second Submarine Flotilla at Heligoland. Details of depot ships and submarine schools.
Folio 80: Confirmation of submarine losses: U.76, UB.32, UC.29, UC.30, UC.32, UC.33, UC.41, UC.43, UC.44, UC.45, UC.55 and UC.76 with UC.40 missing.
Folios 80: Battleships. Details of damage to Grosser Kurfurst, Kaiser, Ostfriesland and Thuringen.
Folio 80: Details of armament on Battle Cruiser Von Der Tann and damage at Jutland.
Folios 80-81: Minelaying Cruisers. Details of appearance, armament, speed, sea-going qualities and complement.
Folio 81: Raiders. Mowe believed to be at Kiel.
Folio 81: Motor Boats. Small motor boats at Libau used for mine sweeping.
Folios 81-82: Description of Fire Control instrument fitted in battleships and battle cruisers for obtaining rate of change of range. Plate 1. Rate of Change of Range Instrument (folio 80).
Folio 82: Details of Torpedo K3, 19.7-in diameter. Details of 23.6-in diameter for new battleships and battle cruisers.
Folio 82: Discipline in the German Navy. Unrest due to poor food and punishments. Submarine crews not as eager as formerly due to losses.