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165. Whiting, F., Loosli, J. K., Krukovski, V. N., and Turk, K. L. (quoted bv Harris, P. L. 



(1950), Ann. Rev. Biochem., 18, 414). 



166. RONNING, M., and Knodt, C. B. (1950), Jf. Dairy Set., 33, 424. 



167. Stallcup, O. T., and Ragsdale, A. C. (1949), Jf. Dairy Set., 32, 713. 



168. HiBBS, J. W., and Krauss, W. E (1947). J. Animal Sci., 6, 161. 



I68a. Chanda, R., Clapham, H. M., and Owen, E. C. (1951), Bicehem. J., (in the press). 



169. EULER, H. VON, and Klussman, E. (1932), Bioehem. Z., 256, 11. 



170. Zechmeister, L., and TuzsON, P. (1934), Ber. deutsch. ehem. Ges., 67, 154. 



171. KUHN, R., and Lederer, E. (1931), Hoppe-Seyl. Z., 200, 246. 



172. Netter, R. (1932), Bull. Soe. Chim. Biol, 14, 1555. 



173. Zechmeister. L. (1937), Ergeb. Physiol., 39, 117. 



174. Bailly, O., and Netter, R. (1931), C. R. Aead. Sei. Paris, 193, 961. 



175. Bailly, O. (1935), Bull. Aead. Med., 107, 932. 



176. EuLER, H. v., Gard, U., and HellstrOm, H. (1932), Svensk. Kent. Tidsk., 44. 191. 



177. Piccolo, G., and Lieben, A. (1886), Giorn. Sci. nat. econ. Palermo, 2, 258. 



178. Holm, F. (1867), J. prakt. chem., 100, 142. 



179. Escher, H. H. (1913), Hoppe-Sevl. Z., 83, 198. 



180. Kuhn, R., and Brockmann, H."(1932), Hoppe-Seyl. Z., 206, 41. 



181. Brunner, O., Baroni, E., and Kleinau, W. (1935), Hoppe-Seyl. Z., 236, 257. 



182. EuLER, H. v., and HfixstrOm, H. (1929), Bioehem. Z., 211, 232. 



183. Studnitz, G. v., Nermann, H. J., and Loevenich, H. K. (1943). Pfluger's Arch. Ges. 



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184. BlELIG, H. J., and BUSCH, L. (1944), Hoppe-Seyl. Z., 280, 56. 



185. EuLER, H. v., and Klussman, E. (1932), Svensk. Kem. Tidsk., 44, 223. 



186. EuLER, H. VON., Zondek, B., and Klussman, E. (1932), Ark. Mineral GeoL, IIB, iNo. 2. 



187. Fischer, H., and Hess, R. (1930), Hoppe-Seyl. Z., 187, 133. 



188. Fischer, H., and Rose, H. (1913), Hoppe-Seyl. Z., 88, 331. 



189. Goodwin, T. W. (1950), Unpublished work. 



190. Cabrera, D. J., and Jesus, Z. de (1939), Phillipine J. Animal Ind., 6, 5. 



191. Fischer, H. (1916), Hoppe-Seyl. Z., 96, 295. 



192. Moore, L. A. (1940), Ind. Eng. Chem., Anal. Ed., 12, 726. 



193. Ka, H. (1939), Rept. hist. Sci. Res. Manchoukuo, 3, 371. 



194. MiLAS, N. A., Postman, W. M., and Heggie, R. (1939), J. Amer. Chem. Soe., 61, 1929. 



195. Palmer, L. S. (1915), y. biol. Chem., 23, 261 ; 1916, 27, 27. 



196. Zechmeister, L., and Tuzson, P. (1934), Hoppe-Seyl. Z., 225, 189. 



197. Peirce, A. W. (1945), Aust. J. Exp. Biol. Med. Sei., 23, 295; 1946,24,231; 1947,25, 



112. 



198. Paulsen, T. M., Hilmoe, R. J., and Moxon, A. L. (1944), Proe. S. Dakota Acad. Sci., 



24. 81. 



199. Bal, D. v., and Shrivastarv, R. C. (1940), Nagpur Univ. J., p. 133. 



200. Aceredo, R. a., and Tapacio, T. (1937), Phillipine J. Animal Ind., 4, 419. 



201. Suomalainen, p. (1939), Skand. Areh. Physiol., 80, 94, 104. 



202. Zechmeister, L., and Tuzson, P. (1935), Hoppe-Seyl. Z., 234, 235. 



203. Rasmussen, R. a., Cole, C. L., and Milter, M. J. (1944), J. Animal Sci., 3, 346. 



204. CORONEL, A. B., and TOPACIO, T. (1938), Phillipine}. Animal Ind., 5, 5. 



205. MiTOLO, M. (1942), Boll. soe. ital. biol. sper., 17, 310. 



206. MiTOLO, M. (1942), Boll. soe. ital. biol. sper., 17, 311. 



207. Pope, A. L., Phillips, P. H., and Bohstedt, G. (1949), y. Animal Sci., 8, 57. 



208. Hvidsen, H., Hansteen, L. G., and Broch, G; (1948), Meieriposten., 37, 148, 167. 



209. Rogozinski, F. (1937), Bull, intern, aead. polon. Sci. Classe sci mat. IIB , 186. 



210. DUHIG, J. V. (1931), Med. y. Austral., 1, 260. 



211. Keane, K. W., Naicamura, F. I., and Morris, M. L. (1947), North American Veterinarian, 



28, 587. 



212. RouiR, E. V. (1947), Bull. Soe. Chim. Biol., 29, 754. 



213. Anderson, H. D.. Johnson, B. C, and Arnold, A. (1940), Amer. y. Physiol. ,129. 631. 

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214. Banerjee, B. N., and Datta, N. C. (1938), Agric. Livestock India, 8, 563. 



215. Smith, V. R., Niedermeier, R. P., and Schultz, L. H. (1948), y. Animal Sci., 7, 544. 



216. Hale, F. (1933), y. Hered., 24, 105. 



217. Zechmeister, L., and Tuzson, P. (1936), Hoppe-Seyl. Z., 238, 147. 



218. Palmer, L. S. (1929), Amer. y. Physiol, 87, 553. 



219. Sonneborn, T. M. (1942), Cold. Spring Harbor Symp., 10, 111. 



220. Grummer, R. H., Whitehair, C. K., Bohstedt, G., and Phillips, P. H. (1948), y. Anima 



Sci., 7, 222. 



221. Palmer, L. S., Kennedy, C, and Kempster, H. L. (1927), y. biol. Chem., 46, 559, 



222. Moore, T. (1929), Bioehem. y., 23. 803. 



223. Krause, R. F., and PlERCE. H. B. (1948), Areh. Bioehem., 19, 145. 



224. SCHUB, R. L. (1940), Aknshersnoi. Ginekol, No. 10, p. 6. 



225. Connor, C. L. (1928), Amer. y. Path., 4, 235. 



226. Morton, R. A., and Rosen, G. D. (1949), Unpublished work. 



227. WoYTKiW, L., and Esselbaugh, N. C. (1951), y. Nutrit., 43, 451. 



228. COOMBES, A. I., Ott, G. L., and WiSNiCKY, W. (1940), North Amer. Vet., 21, 601. 



229. Leong, p. C. (1939), y. Malay Branch B.M.A., 2. 219. 



230. Barrick, E. R., Andrews, F. N., and Bullard, J. F. (1948), y. Animal Sci., 7, 539. 



231. Beadle, B. W., Wilder, O. H. M., and Kraybill, H. R. (1948), y. biol chem., 175, 221. 



232. Pease, M. (1928), Z. ind. abstam. u. Venerbungsl Suppl., 2, 1153. 



233. Willimott, S. G. (1928), Biochem. y., 22, 159. 



256 



