Woman at her micoscope.

This is the distinguished biologist, Miss Ethel Sargant (1863-1918)

"He included her microscope in the picture but she complained that her "sense of humour was left out" She bought thirteen extra copies for nine guineas

(F. Ernest Jackson and his School, J.G.P. Delaney, Ashmolean Museum, Oxford, 2000, p.10)