Matches in DBpedia 2014 for { ?s ?p Marie Gertrude Rand Ferree (October 29, 1886 – June 30, 1970) was an American research scientist who is known for her extensive body of work about color perception. Her work included "mapping the retina for its perceptional abilities", "developing new instruments and lamps for ophthalmologists", and "detection and measurement of color blindness". Rand, with LeGrand H. Hardy and M.. }
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- Gertrude_Rand comment "Marie Gertrude Rand Ferree (October 29, 1886 – June 30, 1970) was an American research scientist who is known for her extensive body of work about color perception. Her work included "mapping the retina for its perceptional abilities", "developing new instruments and lamps for ophthalmologists", and "detection and measurement of color blindness". Rand, with LeGrand H. Hardy and M.".