jg^ Comparative Animal Physiology 



164. Ullmann, T., Ztschr. vergl. Physiol. 17:520-536 (1932). Digestion of starch, 

 inulin, lichenin, invertebrates. 



165. Ungar, G., C. R. Soc. Biol. Paris 119:172-173 (1935). Effects of drugs on gastric 

 secretion, elasmobranchs. 



166. Van Slyke, D. D., and White, G. F., ). Biol. Chem. 9:209-217 (1911). Protein 

 digestion in dogfish. 



167. VoGEL, B., Ztschr. vergl. Physiol. 14:273-347 (1931). Utilization of sugars, 



honeybee. 



168. VoNK, H. J., Ztschr. vergl. Physiol. 5:445-546 (1927). Digestion in fishes. 



169. VoNK, H. J., Ztschr. vergl. Physiol. 9:685-702 (1929). Pepsin in different verte- 

 brates. 



170 VoNK, H. J., Biol. Rev. 12:245-287 (1937). Review, digestive enzymes m 



metazoa. 



171. VoNK, H. J., Adv. in Enzymol. 1:371-417 (1941). Review, digestion in lower 

 vertebrates. 



172. VoNK, H. J., Brink, K., et al., Proc. Kon. Nederl. Akad. Wetensch. 49:972-982 

 (1946). Gastric digestion, birds. 



173. Waldschmidt-Leitz, E., et al., Ber. dtsch. chem. Ges. 61:299-306, 640-645, 

 645-656, 2092-2096 (1928), ihid. 62: 956-963 (1929). Classification of pepti- 

 dases. 



174. Weese, a. O., Ptih. Puget Sound Biol. Sta. 5:165-177 (1926). Digestion by sea 

 urchin. 



175. Westblad, E., Lnnds Arssk. 18: 1-102 (1923). Digestion in turbellarians. 



176. WiERSMA, C. A. G., and van Veen, R., Ztschr. vergl. Physiol. 7:269-278 (1928). 

 Carbohydrases of Astacus. 



177. WiGGLESwoRTH, V. B., Biochem. J. 21:791-796 (1927). Acidity of digestive 

 canal, carbohydrate digestion, cockroaches. 



178. WiGGLEswoRTH, V. B., Parasitology 21:288-321 (1929), ihid. 23:73-76 (1931). 

 Digestion in Diptera; tsetse-fly, Glossina and Chrysops. 



179. WiGGLESwoRTH, V. B., Principles of Insect Physiology (1939). London, Meth- 

 uen. Ch. 11, pp. 254-298. Digestion and nutrition. 



180. WiLBER, C. G., Biol. Bull. 83:320-325 (1942), ibid. 91:235 (1946). Digestion 

 of fat in Pelomyxa. 



181. W^iLLiER, B. H., Hyman, L. H., ET AL., }. Morph. 40:299-340 (1925). Intra- 

 cellular digestion in triclads. 



182. WoLVEKAMP, H. P., Ztschr. vergl. Physiol. 7:454-461 (1928). Carbohydrate 

 digestion, turtle. 



183. Wright, R. D., et al.. Quart. }. Exper. Physiol. 30:73-120 (1940). Duodenal 

 secretion in dogs. 



184. Yonge, C. M., /. Exper. Biol. 1 : 15-63 (1923). Feeding, digestion and assimilation 

 in clam Mya. 



185. Yonge, C. M., /. Exper. Biol. 2:373-388 (1925). Digestion in the ascidian, 

 Ciona. 



186. Yonge, C. M., ]. Mar. Biol. Ass. U. K. 14:295-385 (1926). Feeding and digestion, 

 Ostrea. 



187. Yonge, C. M., Bioi. Rev. 3:21-76(1928). Feeding mechanisms, invertebrates. 



188. Yonge, C. M., Sci. Rep. Great Barrier Reef Expedition, Brit. Mus. 1 : 59-81, 83-91, 

 135-175 (1930-31). Feeding, digestion and assimilation in corals. 



189. Yonge, C. M., Sci. Rep. Great Barrier Reef Expedition, Brit. Mus. 1:259-281 

 (1932). Occurrence of crystalline style in molluscs. 



190. Yonge, C. M., Biol. Rev. 12:87-115 (1937). Review of digestion in Metazoa. 



191. ZiESE, W., Ztschr. Physiol. Chem. 203:87-116 (1931). Characteristics of cellu- 

 lase from Helix. 



