title: Absorption spectra, molecular weights and visual purple.
authors.forename: F D
authors.initials: FD
authors.lastname: COLLINS
authors.forename: R A
authors.initials: RA
authors.lastname: MORTON
mesh_terms: D008970:Molecular Weight; D010858:Pigmentation; D012160:Retina; D012168:Retinal Pigments; D012243:Rhodopsin
chemical_list: D012168:Retinal Pigments; D012243:Rhodopsin
keywords: RETINA/pigments and pigmentation