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135. Tatum, E. L., Proc. Nat. Acad. Sci. 25:490-497 (1939). Nutritional require- 

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136. Tatum, E. L., Proc. Nat. Acad. Sci. 25:490-497 (1939). B vitamin require- 

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137. Tatum, E. L., Garnjobst, L., and Taylor, C. V., /. Cell. Gr Comp. Physiol. 

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138. Tracer, W., Physiol. Rev. 21:1-35 (1941). Nutrition of Invertebrates. 



139. Tracer, W., /. Parasitol. 33:345-350 (1947). Culture of malaria parasite, Plas- 

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140. Tracer, W., Biol. Rev. 22:148-177 (1947). Insect nutrition. 



141. Tracer, W., /. Biol. Chem. 176:1211-1223 (1948). Biotin and nutrition -of 

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142. Tracer, W., and Subbarow, Y., Biol. Bull. 75:75-84 (1938). Riboflavin and 

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143. ViLLEE, C. A., and Bissell, H. B., /. Biol. Chem. 172:59-66 (1948). Nucleic 

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144. Vogel, B., Ztschr. vergl. Physiol. 14:273-347 (1931). Sugar utilization by 

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145. Weir, D. R., Heinle, R. W., and Welch, A. D., Proc. Soc. Exper. Biol. & Med. 

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146. WiESE, A. C, Johnson, B. C, et al., /. Nutrit. 33:263-270 (1947). Riboflavin 

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147. Williamson, J. W., Physiol. Zool. 17:209-228 (1944). Nutrition of amoeba. 



148. Woodbury, L. A., Tr. Am. Fish. Soc. 72: 30-34 (1943). Thiamine deficiency, 

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149. WooLLEY, D. W., /. Nutrit. 28:305-314 (1944). Nutritional significance of 

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150. WooLLEY, D. W., and Springe, H., /. Biol. Chem. 153:687-688 (1944). Folic 

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151. WuLZEN, R., Univ. Calif. Piibl. Physiol. 5:175-187 (1923), ihid. 7: 1-7 (1926). 

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152. WuLZEN, R., and Bahrs, A. M., Physiol. Zool. 4:204-213 (1931). Balanced 

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153. WuLZEN, R., and Bahrs, A., Physiol. Zool. 8:457-473 (1935), ihid. 9:508-529 

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154. WuLZEN, R., and Bahrs, A. M., Am. ]. Physiol. 133:500 (1941). Effect of milk 

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