Hardback exercise book inscribed 'Voyages to and from British Guiana 1929'. In ink: in the hands of Nicholson and Basil Nicholson. The book is chiefly a diary of birds seen on the outward and return voyages, the former written by Nicholson, the latter by Basil Nicholson.

Following the diary entries is the beginning of a manuscript draft (2 pages) titled 'An Ornithological Transect of the Atlantic', by Nicholson and Basil Nicholson. A few loose papers have been inserted at the front and back: at the back is loose letter to Nicholson from 'O.W.R.', 1930.