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43. Wood, J. L., and du Vigneaud, V., /. Am. Chem. Soc, 67, 210 (1945). 



44. Rubin, S. H., Drekter, L., and Moyer, E. H., Proc. Soc. Exptl. Biol. Med., 58, 



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45. Shull, G. M., Hutchings, B. L, and Peterson, W. H., /. Biol. Chem., 142, 913 



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46. du Vigneaud, V., Chem. Eng. News, 23, 620 (1945). 



47. Dittmer, K., du Vigneaud, V., Gyorgy, P., and Rose, C. S., Arch. Biochem., 4, 



229 (1944). 



48. Dittmer, K., and du Vigneaud, V., Science, 100, 129 (1944). 



49. du Vigneaud, V., Dittmer, K., Hofmann, K., and Melville, D. B., Proc. Soc. 



Exptl. Biol. Med., 50, 374 (1942). 



50. Chu, E. J-H, and Williams, R. J, J. Am. Chem. Soc, 66, 1678 (1944). 



51. Lilly, V. G., and Leonian, L. H., Science, 99, 205 (1944). 



52. Brown, G. B., and du Vigneaud, V., /. Biol. Chem., 163, 761 (1946). 



53. Hofmann, K., Melville, D. B., and du Vigneaud, V., J. Biol. Chem., 141, 207 



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54. Tatum, E. L., /. Biol. Chem., 160, 455 (1945). 



55. Hijner, J. A., Experientia, 2, 312 (1946). 



56. Mueller, J. H., J. Biol. Chem., 119, 121 (1937); J. Bad., 34, 163 (1937). 



57. du Vigneaud, V., Dittmer, K., Hague, E., and Long, B., Science, 96, 186 (1942). 



58. Wright, L. D., Proc. Soc. Exptl. Biol. Med., 51, 27 (1942). 



59. Eakin, R. E., and Eakin, E. A., Science, 96, 187 (1942). 



60. Burk, D., and Winzler, R. J., Science, 97, 57 (1943). 



61. Hofmann, K., Bridgwater, A., and Axelrod, A. E., J. Am. Chem. Soc, 69, 1550 



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62. Auhagen, E., Naturwiss., 33, 221 (1946). 



63. Leonian, L. H., and Lilly, V. G, J. Bad., 49, 291 (1945). 



64. Duschinsky, R., and Dolan, L. A., /. Am. Chem. Soc, 67, 2079 (1945). 



65. Dittmer, K., and du Vigneaud, V., J. Biol. Chem., 169, 63 (1947). 



66. Duschinsky, R., and Dolan, L. A., /. Am. Chem. Soc, 68, 2350 (1946). 



67. Rogers, L. L., and Shive, W., /. Biol. Chem., 169, 57 (1947). 



68. McKennis, H., Jr., and du Vigneaud, V., J. Am. Chem. Soc, 68, 832 (1946). 



69. Duschinsky, R., and Rubin, S. H., /. Am. Chem. Soc, 70, 2546 (1948). 



70. Keresztesy, J. C., Laszlo, D., and Leuchtenberger, C, Cancer Research, 6, 128 



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71. Goldberg, M. W., Sternbach, L. H., Kaiser, S., Heineman, S. D., Scheiner, J., 



and Rubin, S. H., Arch. Biochem., 14, 480 (1947). 



72. Hofmann, K., Chen, C., Bridgwater, A., and Axelrod, A. E., /. Am. Chem. Soc, 



69, 191 (1947). 



73. English, J. P., Clapp, R. C., Cole, Q. P., Halverstadt, I. F., Lampen, J. O., and 



Roblin, R. O., Jr., /. Am. Chem. Soc, 67, 295 (1945). 



74. Boas, M. A., Biochem. J., 21, 712 (1927). 



75. Gyorgy, P., J. Biol. Chem., 131, 733 (1939). 



76. Gyorgy, P., Melville, D. B., Burk, D., and du Vigneaud, V., Science, 91, 243 



(1940). 



77. du Vigneaud, V., Melville, D. B., Gyorgy, P., and Rose, C. S., Science, 92, 62 



(1940). 



78. Gyorgy, P., Rose, C. S., Hofmann, K., Melville, D. B., and du Vigneaud, V., 



Science, 92, 609 (1940). 



79. Eakin, R. E., Snell, E. E., and Williams, R. J., J. Biol. Chem., 140, 535 (1941). 



80. Pennington, D., Snell, E. E., and Eakin, R. E., J. Am. Chem. Soc, 64, 469 (1942). 



81. Gyorgy, P., Rose, C. S., Eakin, R. E., Snell, E. E., and Williams, R. J., Science, 



93, 477 (1941). 



82. Woolley, D. W., and Longsworth, L. G., J. Biol. Chem., 142, 285 (1942). 



