CONTENTS 



PAGE 



CHAPTER I. General Distribution of Carotinoids. The Pigments 



Defined 13 



Luteins. - - Lipochromes. - - Lipoxanthins. - - Chromolipoids. 

 Carotinoids. Non-carotinoid plant pigments. Non-curo- 

 tinoid animal pigments. 



CHAPTER II. Carotinoids in the Phanerograms 25 



The pigments of the carrot. Carotinoids in other roots. 

 Carotinoids in the chloroplastids. Separation of yellow pig- 

 ments from chlorophyll. Crystalline carotinoids from chlo- 

 roplastids. Plurality of yellow pigments in chloroplastids. 

 Carotinoids in etiolated leaves. Carotinoids in naturally 

 yellow leaves. Carotinoids in yellow autumn leaves. Caro- 

 tinoids in autumn and winter reddening. Carotinoids in 

 flowers. Carotinoids in fruits. Carotinoids in seeds and 

 grains. 



CHAPTER III. Carotinoids in the Cryptogams 92 



Carotinoids in the algae. The Phaeophyceae. Fucoxanthin. 



-The Rhodophyceae. The Charales. The Chlorophyceae. 



-The Baccilariae (Diatomaceae). The Peridinieae. The 

 Flagellata. The Myxophyceae (Cyanophyceae). Carotin- 

 oids in the fungi. The Basidiomycetes. The Ascomycetes. 



-The Phycomycetes. The Myxomycetes. The Imperfects. 



Carotinoids in Bacteria. 



CHAPTER IV. Carotinoids in the Vertebrates 125 



Carotinoids in mammals. Corpus lutcum. Blood serum. 

 Milk fat. Adipose tissue. Internal organs. Nerve<. Skin. 

 Carotinoids in birds. Egg yolk. Body tissues. Retina. 

 Feathers. Carotinoids in fishes. Carotinoids in amphib- 

 ians. Carotinoids in reptiles. 



CHAPTER V. Carotinoids in Invertebrates 154 



Carotinoids in insects. Lepidoptera. Rhynchota. Coleop- 

 tera. ( hllmptera. Acerata. ( 'arotinoids in ( Vustacea.- 

 Carotinoids in Echinoderms. Carotinoids in molluscs. 

 Carotinoids in worms. Carotinoids in sponges. 



11 



