302 



INDEX OF SUBJECTS 



152 ; of humans, carotin and xantho- 

 phyll in, 130, 151 ; of horse, carotin 

 and bilirubin in, 129, 151; of new 

 born calf, absence of carotinoids 

 from, 129, 151 ; of various mammals, 

 pigments in, 131, 151. 



Blood serum, pigment of, 14, 15, 127- 

 131, 151; quantitative estimation of 

 carotinoids in, 259, 260. 



Blue-green algae, carotinoids. in, 110- 

 112, 123. 



Blue hydrocarbon, 236. 



Blue pigment of Crustacea, transfor- 

 mation of into lipochrome, a col- 

 loidal phenomenon, 165. 



Bombinator igneus, 150. 



Bombyx mori, 157. 



Bolrydium, 104. 



Box tree leaves, carotin content of, 249. 



Bracket fungi, carotinoids in, 113-114. 



Braxxica campestris L., 29, 87; Brassica 

 nigra, 87; Brassica oltijera, 249; 

 Braxsica Rapa L., 29. 



Brittle-stars, carotinoids in, 165, 167. 



Broom flower, xanthophylls in, 72, 73. 



Brouxxunctia papyrijca, 58. 



Brown sea-weeds, carotinoids in, 93- 

 100, 122; isolation of carotinoids 

 from, 215. 



Bryonia dioica (Bryony), carotinoids 

 in fruit of, 75. 



Buckeye, autumn pigments of, 58, 62. 



Bujo calamita, 149; B. tiridi-s, 149, 185; 

 B. iidgaris, 149. 



Bugs, carotin in, 158, 171, 177. 



Buyuia n< ritina, 168. 



Bulbine semibarbata, 74. 



Bulbochacte, 104; Bulbochaete seti- 

 gera, 104. 



Bulgaria inquinans (polymorpha), 117. 



Bullfinch feathers, pigments of, 143, 144. 



Buphthalmum salicijolium, 73. 



Butter, pigment of, 14, 131, 132, 151; 

 seasonal variation of anti-edema sub- 

 stance in, 272. 



Buttercups, crystalline carotin from, 

 69; cause of oily appearance of, 69; 

 xanthophylls in, 73, 74. 



Butter fat, carotin and vitamin con- 

 tent of, 269, 270; effect of decoloriz- 

 ing on vitamin content of, 270; ex- 

 periments on origin of color of, 190- 

 192, 197; quantitative estimation of 

 carotinoids in, 258, 260. 



Butter fat carotin, adsorption of by 

 charcoal, 219. 



Butterflies, wing colors of, 154, 155. 



Butterfly larvae, carotinoids in, 154-158, 

 171 ; pupae, carotinoids in, 154-158, 

 171. 



Bitxus scmpcnirens (box tree), red 

 winter pigment of, 65, 249. 



B. xanthophyll, 40-42; blue color re- 

 action of with acids, 40, 42; acid 

 derivative of in autumn leaves, 61. 



)8 xanthophyll of Kohl, 44; in autumn 

 leaves, 61 ; in diatoms, 107 ; of 

 Tschirch, 41, 54, 59; of Tswett, 44, 

 70. 



Cacalia coccinea, 73. 



Cacatura roseicapilla, 144. 



Calabazilla, carotinoids in flowers of, 

 73. 



Calceolaria rugosa Hook., 72. 



Cdl< ml ula arvcnsis L., 72; Calendula 

 officinale L., 69, 72. 



Calf blood, absence of carotinoids from 

 new born, 129, 267. 



California poppy, 68, 74. 



Callithamnion hicmale, 101. 



Callopdtis quadrilineatis Pallas, 150. 



Caloci rti rixcoxa, 114, 115; C. cornea, 

 114, 115; C. palmata, 114, 115. 



Calothrix species, 111. 



C alt ha palustris, 73. 



Cdhirux auriceps, 144. 



Caiyptrocaiix spicatus Blume, 77. 



Camaclon vulgaris, 150. 



( 'a melon skin, carotinoids in, 150, 153. 



Camouflage, carotinoids and detection 

 of, 7. 



Campethera nubica, 145. 



Canary bird, xanthophyll in yellow 

 feathers of, 145; effect of feeding 

 cayenne pepper to, 187, 197. 



Cancer pagurus, 164. 



Cannabis saliva, 52, 87, 249. 



Capillary method of pigment analysis, 

 70. 



Cnpxicum annum, 69, 82, 188. 



Carabus auratus, 159. 



Cardinalis virginianus, 144. 



Cardinal, pigments in feathers of, 143, 

 144. 



Carotene, as spelling for carotin, 19. 



Carotin-albumin complex in blood, 15, 

 128; method of isolation of, 208, 209; 

 significance of in determining breed 

 differences in pigmentation of cattle, 

 192; significance of in formation of 

 milk fat, 209. 



Carotin, adsorption by mercury salts, 

 15; alleged oxidation of to xantho- 

 phyll, 264; chromatophor group in, 

 235; extraction of from plants, 251, 

 252; general properties of, 25-28; 

 hydrocarbon nature of, 26-28; iodine 

 derivatives of, 27, 233, 234; isola- 

 tion of from animal fat, 204-206; 



