Folios 18-26: CB number 01289 O.X.O; Copy number 70; Interrogation of Acting Warrant Officer Haack, date February 1917.
Folios 19-20: cover sheets.
Folios 21-22: Interrogation of Acting Warrant Officer Bernhard Haack, captured from German Submarine UC 32. Preliminary remarks about Haack, (folio 21); UB 35 and Hannover, (folio 21); U 76, (folio 21); UC 31, (folio 21); UC 32, in which is mentioned the British Trawler, Alexandra, the Norwegian SS Sterling, the Norwegian SS Borga, the British Trawlers, Thistle, Petrel and Mayfly, the armed trawler Speedwell II (folios 21-22). Track chart showing cruises of U 76, UB 35, UC 31 and UC 32, (1916-1917). Details of submarines, U 76, (folios 22-23); general details of UC 31 and UC 32, (folios 24-25); general details of UB 35, (folio 25).
Folio 25: Submarine Flotillas.
Folio 25: Mine laying methods.
Folios 25-26: Personnel and Organisation. Officers of U 76, UC 31, UC 32 and UB 35 (names and ranks supplied), (folio 26); organsiation of submarine service, (folio 26).
Folio 26: Food.