Wellcome's Photographic Exposure Record and Diary (Northern Hemisphere and Tropics)

Contents include Monthly Light Tables for the Northern Hemisphere calculated at 52° North Latitude, 'and are approximately correct for England, Ireland, Belgium, Holland, Germany, Southern Russia, Northern China, Newfoundland and Southern Canada.' Light Table for the Tropics is suitable for use in the Tropics, i.e. between about 20° S. and 20° N. latitude, all the year round.

There are several colour photographic images including H. G. Ponting official photographer to the British Antarctic Expedition, 1910 developing a plate with 'Tabloid' 'Rytol'. Images produced with 'Tabloid' brand photographic chemicals throughout, Index (of photographic chemicals), postal information for the United Kingdom, temperature chart (guide for photographic operations), weights and measures, customs regulations, illustrations, Modern Photographic Methods including colour photography, Development (information on 'Tabloid' developers and methods) list of 'Tabloid' brand Photographic Chemicals and prices in London, Permits, Record of negative exposures record of positive exposures, diary, week to a page, and memoranda pages with article on exposure and tables of light values follow memoranda pages.

Wellcome's Exposure Calculator positioned on back endpaper.

1914

1 diary Bound wallet style in green cloth buckram with gold tooling, endpapers printed. Text block machine made paper.

Copyright assigned to the Wellcome Trust

A digital copy of the image of H. G. Ponting official photographer to the British Antarctic Expedition, 1910 developing a plate with 'Tabloid' 'Rytol', is held by Wellcome Images: L0038522