Kundt's rule: the spectral absorbance of visual pigments in situ and in solution.
D000818:Animals; D001001:Anura; D005399:Fishes; D006358:Hot Temperature; D006898:Hydroxylamines / Q000494:pharmacology; D008116:Lizards; D010786:Photoreceptor Cells / Q000032:analysis; D011894:Rana pipiens; D012168:Retinal Pigments / Q000032:analysis* / Q000302:isolation & purification; D013057:Spectrum Analysis
D006898:Hydroxylamines; D012168:Retinal Pigments