People Cyril Douglas Day peoplepill id: cyril-douglas-dayCDD 7 views today 7 views this weekPhysician, entomologist and naturalistCyril Douglas DayBiographyListsAlso ViewedListsCyril Douglas Day is in following listsBy field of workNotable biologistsGender:Male, Born in:Years 1850 to 1899Notable people in healthcare and medicineGender:Male, Born in:Years 1850 to 1899Notable scientistsGender:Male, Born in:Years 1850 to 1899Notable people in social scienceGender:Male, Born in:Years 1850 to 1899By work and/or countryNotable PhysiciansGender:Male, Born in:Years 1850 to 1899Notable ZoologistsGender:Male, Born in:Years 1850 to 1899Notable EntomologistsGender:Male, Born in:Years 1850 to 1899Notable NaturalistsGender:Male, Born in:Years 1850 to 1899Notable LepidopteristsGender:Male, Born in:Years 1850 to 1899From our partnersSponsoredCyril Douglas Day