ANIMAL CHLOROPHYLL 393 



Nencki, M. (1897). — " Sur les rapports biologiques eiitre la matiere 

 colorante des feuilles et celles du sang ", ' Arch. Sci. biol. yt.-Peters- 

 bourg ', torn, 5, pp. 254-60. 



Newbigin, M. I. (1897). — "The pigments of the decapod Crustacea", 

 ' Journ. Physiol.', vol. 21, pp. 237-57. 



Paladino, R. (1908). — " IJber das spektroskopische und cheniische Ver- 

 halten des Pigmentseki'etes von Aplysia punctata", ' Zeit. Chem. 

 Physiol. ,u. Path. (Hofmeister) ', Bd. 11, pp. 65-70, 



(1910). — " Zur Kenntniss der Leberpigmente der wirbcllosen See- 



tiere ", ' Biochem. Zeits.'. Bd. 28, pp. 56-9. 



Palmer, L. S. (1915). — " Xanthophyll, the principal natural yellow pig- 

 ment of the egg yolk, body fat, and blood serum of the hen. The 

 physiological relation of the pigment to the xanthophyll of plants ", 

 ' Journ. Biol. Chem.', vol. 23, pp. 261-79. 



^(1916). — "The physiological relation of plant carotinoids to the 



carotmoids of the cow, horse, goat, pig and hen ", ibid., vol. 27, 

 pp. 27-32. 



and C. H. Eckles (1914a). — "Carotin — the principal natural yellow 



pigment of milk : its relation to plant carotin and the carotin of the body 

 fat, corpus luteum, and the blood serum. I. The chemical and physio- 

 logical relations of the pigments of milk fat to the carotin and xantho- 

 phylls of green plants ", ibid., vol. 17, pp. 191-210. 



(1914 &).—" Carotin. V. The pigments of human milk fat ", 



ibid., pp. 245-9. 

 and H. J. Kempster (1919 u). — " Relation of carotmoids to growth, 



fecundity, and reproduction in fowls ", ' Journ. Biol. Chem.', vol. 39, 



pp. 299-312, pi. 2. 

 (1919?)).— " The physiological relation between fecundity and 



natural yellow pigmentation of certain breeds of fowls ", ibid., pp. 313- 



29, pis. 3, 4. 

 (1919 c). — " The influence of specific feeds and certaua pigments 



on the colour of the egg-yolk and body-fat of fowls ", ibid., pp. 331-7. 

 Parker, G. H. (1917). — " The movements of the tentacles in Actinians ", 



'Journ. Exp. Zool.', vol. 32, pp. 95-110. 

 Parker, T. J., and W. A. Haswell (1910).—' A Text-book of Zoology ' 



London : Macmillan & Co., 2nd ed., 2 vols., 839-1- 738 pp. 

 Paul, J. H., and J. S. Sharpe (1919). — " Relationship of lecithin to the 



growth cycle in Crustacea ", ' Biochem. Journ.', vol. 13, pp. 487-90. 

 Peterson, H. (1913).— " Chlorophyll in caterpillars", 'Nature', vol. 91, 



p. 643 ; ' Pharm. Journ.', vol. 91, pp. 373-7. 

 Phillips, R. W. (1911).—" Algae ", ' Eiicy. Brit.', vol. 1, pp. 585-98. 

 Piettre, M. (1911 a). — " Sur les jjigments melaniques d'origine animale "', 



' C. R. Acad. Sci. Paris ', tom. 153, pp. 782-5. 

 (1911 b).— ' Sur les melaines ", ibid., pp. 1037-40. 



