Originally published in 1925, this book embodies the results of research on red-green colour-blind subjects, supplemented by brief accounts of blue-yellow, total, and acquired colour-blindness to complete the description of the different forms of the defect. After a historical survey of previous work by such men as Dalton, Helmholtz, Rayleigh, Edridge-Green and others, the author deals with the most important theories of colour-blindness, and with a description of the tests and a discussion of their results.
Originally published in 1925, this book embodies the results of research on red-green colour-blind subjects, supplemented by brief accounts of blue...
In this collaborative memoir, a parent and a transgender son recount wrestling with their differences as Donald Collins undertook medical-treatment options to better align his body with his gender identity. As a parent, Mary Collins didn't agree with her trans son's decision to physically alter his body, although she supported his right to realize himself as a person. Raw and uncensored, each explains her or his emotional mindset at the time: Mary felt she had lost a daughter; Donald activated his "authentic self." Both battled to assert their rights. A powerful memoir and...
In this collaborative memoir, a parent and a transgender son recount wrestling with their differences as Donald Collins undertook medical-treatment...
