(1 



(2 

 (3 

 (4 

 (5 

 (6 

 (7 

 (8 

 (9 

 (10 



(11 

 (12 

 (13 

 (14 

 (15 

 (16 

 (17 

 (18 

 119 



(20 

 (21 

 (22 

 (23 

 (24 

 (25 

 {26 



(26 



(27 



(28 



(29 



(30 

 (31 

 (32 

 (33 

 (34 

 (35 

 (36 

 (37, 

 (38 



REFERENCES 



"Kelner, A.: Proc. Natl. Acad. Sci. U. S., (35), 73, 1949. 



Bawden, F, C, and Kleczkowski, B. : Nature, (169), 90, 1952. 



Tatum, E. L., and Perkins. D. D. : Ann. Rev. Microbiology, (4), 129, 1950. 



Heinmets, F. ct al. : Jour. Bact., (67), 511, 1954. . 



Moriyama, H., and Ohashi, S. : J. Shanghai Sci. Inst., (5), 189, 1941. 



Vago, C. : Rev. Canadienne Biol. : (10), 299, 1951. 



Kunkel, L. O. : Amer. J. Bot., (24), 316, 1937. 



Bawden, F. C. : Plant Viruses and Virus Dis., 1950. 



Fukushi, T. : Plant Viruses, Tokyo, 1952. 



Wright, B. E. : Nature, (168), 1087, 1951. 



Hamre, D., et al. : Proc. Soc. Exp. Biol. & Med., (73), 275, 1950. 



Thompson, R. L. ct al. : Proc. Soc. Exp. Biol. & Med., (78), 11, 1951. 



Thompson, R. L., et al. : J. Imm., (70), 229, 1953. 



Ackermann, W. W. : J. Exp. Med., (93), 635, 1951. 



Ackermann, W. W. : Proc. Soc. Exp. Biol. & Med., (80), 362, 1952. 



Ackermann, W. W.. and Johnson, R. B. : J. Exp. Med., (97), 315, 1953. 



Shope, R. E. : J. Exp. Med., (97), 601, 627, 639, 1953. 



Mirick, C. S., et al. : J. Exp. Med., (95), 147), 1952. 



Brachet, J. : Chemical Embryology, Translated from the French by Barth ; 

 New York, 1950. 



Haurowitz, F. : Progress in Biochemistry, New York, 1950. 



Curtis, W. C, and Guthrie, M. J. : General Zoology, IV. Edition, 1947. 



Riker, A. J., and Hildebrandt, A. C. : Ann. Rev. Microbiology, (5), 223, 1951. 



Cooke, J. v., et al. : J. Exp. Med., (97), 651, 1953. 



Whitaker, D. M. : Growth, (4), 75, 1940. 



Harrison, R. C. : Trans. Cam. Acad. Arts and Sciences, (36), 277, 1945. 



Gaillard, P. J. : Symposia of the Society for Exp. Biol., (II), Growth, 139, 

 1948. 

 a) Nettleship, A. : Proc. Soc. Exp. Biol. & Med., (84), 325, 1953. 



Drabkin, D. L. : Arch. Biochem., (21), 224, 1949. 



Kendrew, J. C, and Perutz, M. F. : Proc. Roy. Soc. London, A, (194), 375, 

 1948. 



Nicholas, J. S- : Th9 Chemistry and Physiology of Growth, Princeton, 187, 

 1949. 



Guyer, M. F. : Animal Biology, III. Edition, New York and London, 1941. 



Timonen, S., and Therman, E. : Eature, (166), 995, 1950, 



Oerstrom, A. : Z. Physiol. Cham., (271), 1, 1941. 



Oehman, L. O. : Arkiv Zool., (36 A) 1, 1945. 



Baltzer, F. : Naturwiss., (29), 177, 196, 1940. 



Zamecknik, P. C, et al. : J. Biol. Chem., (175), 299, 1948. 



Friedberg, F., et al. : J. Biol. Chem. : (173), 437, 1948. 



Dickens, F., and Weil-Mahlherbe, H. : Cancer Res., (3), 73, 1943. 



Burk, D., and Winzler, R. J.: Ann. Rev. Biochm., (8), 1944. 



