Mary Collins (1895–1989) was an expert in colour vision, and psychology lecturer at Edinburgh University.
Mary Collins gained her MA in 1917 from Edinburgh University, her BEd in 1919 and PhD in 1923.
Her first book, Colour blindness was published in 1925 covering her initial work in studying aspects of color vision.
[4] Collins' time working with Drever was involved with developing test methods for determining the form of color blindness that patients may have, especially for those that would be most informative both in the teaching classroom and in the research lab.
These were non-linguistic tests that enabled children to show their understanding of color, shapes, sizes, and weights without having to be told verbally what to do and only using printed instructions.