Glass haemocytometer designed by Thoma, from the portable laboratory owned by Dr. H.G Butterfield, by Hawksley, London, England, 1930-1940 Glass haemocytometer designed by Thoma 1930-1940
Thoma's haemacytometer, cased, by C. Zeiss, German Thoma's haemacytometer, cased, by C. Zeiss, German
Thoma Zeiss haemocytometer with pipettes, by Bausch and Lomb Thoma Zeiss haemocytometer with pipettes 1900-1980
Haemocytometer used in the examination of tissue cultures at the Common Cold Research Unit Haemocytometer
Glass haemocytometer, from the portable laboratory owned by Dr. H.G Butterfield, E. Leitz, Wetzlar, Germany, 1930-1940 Glass haemocytometer 1930-1940