308 



INDEX OF SUBJECTS 



Hawkbit, crystalline carotin from, 69. 

 Hawkweed, carotinoids in flowers of, 



73. 



Hawthorn, autumn pigments of, 58. 

 Hazelnut, autumn pigments of, 58. 

 Hedera helix, 36, 58, 65, 249. 

 Helenium autumnale, 73. 

 Helianthus annus, 52, 67, 87. 

 Helix pomatia, 167. 

 Hemerocallis Middcndirffii Trautv. and 



Mey., 73. 

 Hemp leaves, carotin content of, 249; 



etiolated pigments of, 52. 

 Hemp seeds, effect of on color of egg 



yolk, 87. 



Hens, laying, effect of feeding red pep- 

 per to, 188. 

 Hi'terosithonales, 104. 

 Hieracium murorum L., 73; Hieracium 



Pilpsella, 73. 

 Hircinia spinosula, 170. 

 Hippolyte variaiis, 161, 189. 

 Holothuria nigra, 166; //. Ocnius brun- 



neus, 166; //. Poll, 166; //. tubulosa, 



166. 



Holothuroids, 165, 166. 

 Honey locust, autumn pigments of, 58, 



62. 

 Honeysuckle, carotinoids in fruit of, 



75, 80. 



Hop tree, autumn pigments of, 58. 

 Hurdt'itm rulgare, 52, 88. 

 Hornbeam, European, autumn pigments 



of, 58. 



Horsetail, red carotinoid in, 65. 

 Hydroidictyon utriculatum, 105. 

 Hydrusus penicillatus, 109. 

 Hyla arborca, 149. 

 Hymeiuaddon albesccns, 170. 

 Hymcnomycetes, 113, 114. 

 Hyssopus officinalis, 251. 



Identification of carotinoids in biologi- 

 cal products, 240-247. 



Idotca, influence of food on color of, 

 185. 



Imperfect fungi, carotinoids in, 119. 



Indian crocus, pigment of, 22. 



Iodine derivative of carotin, 26, 27, 45. 



Iodine color reaction of carotinoids, 

 limitations of for animal tissues, 243. 



Impatiens Noli-tangiTC, 73. 



Insects, pigments of, 155-161. 



Internal organs of mammals, carotin- 

 oids in, 133, 134. 



Inula Helenium L., 73. 



Invertebrates, carotinoids in, 154-172. 



Iris Germinia, 58; Iris pseudacorus L., 

 73. 



Isatis tinctoria L., 72. 



Ithaginus cruentatus, 144. 



Ivy leaves, carotin content of, 249. 



Japanese Aokiba, carotinoids in natu- 

 rally yellow leaves of, 54. 



Japanese Rose, carotinoids in, 74. 



Japanese spindle tree, carotinoids in 

 naturally yellow leaves of, 54; in red 

 arils of, 86. 



Jersey cattle, relation of skin color to 

 fat production in, 275-277. 



Jerusalem Cherry, carotinoids in, 75. 



Johannis berries, erythrophyll of, 34. 



John Dorey, xanthophyll in skin of, 147. 



Juglans regia, 58, 249. 



Juniperus virginiaca, 59. 



Kerria japonica D. C., 74. 



Kidney bean, pigment in etiolated 



leaves of, 50, 53. 

 Kleinia Galpim, 74. 

 Kniphofia aloodes, 74. 



Laccrta ag'dis, 150; L. muralis, 150. 



Lacertofulvine, relation of to xantho- 

 phyll, 150. 



Lactochrome, 131. 



Ladanum kybridum, 74. 



Lady-slipper, xanthophyll in, 72; other 

 pigments in, 74. 



Laminaria saccharina, 93, 94, 96; La- 

 minaria digitalis, 96. 



Lantium album, 44. 



Larch, European, autumn pigments of, 

 58. 



Larix europaca, 58. 



Lark's Spur, carotinoids in, 73. 



Laurcncia pinnatifida, 101. 



Lcandcr serratur, 161. 



L> (itht-sia marina, 96. 



Leaves, carotinoid content of as af- 

 fected by sunlight and shadow, 255. 



Lemania fluviatilus, 101. 



Lemon, absence of carotinoids from, 78. 



Ltontedon autumnalis, 69, 74; Leon- 

 tedon taraxacum, 74. 



Leopard's bane, xanthophyll in, 72, 

 73. 



Lcotia lubrica, 116, 117. 



L(.']>idium Draba, 58; Lepidium sati- 

 i urn, 52. 



Lepidoptera, 155-158. 



Li pralia joliacea, 168. 



Leucocyan reaction of alcoholic ex- 

 tracts from brown sea-weeds, 96; 

 from diatoms, 107. 



Leuconia Gossei, 170. 



Leucoplastids, 29, 48. 



Leukophyll in etiolated leaves, 49. 



Lichnoxanthin in fungi, 114. 



