426 S. GARD AND O. MAAL0E 



Spizizen, J. (1957). Proc. Natl. Acad. Sci. U.S. 43, 694. 



Stahl, F. W. (1956). Virology 2, 206. 



Stanley, N. F., Dorman, D. C, Ponsford, J., and Larkin, M. (1956). Australian J. Exptl. 



Biol. Med. Sci. 34, 297. 

 Stanley, W. M. (1934a). Science 80, 339. 

 Stanley, W. M. (1934b). Phtjtoputliology 24, 1055. 

 Stanley, W. M. (1943c). Phytopathology 24, 1269, 

 Stanley, W. M. (1935). Phytopathology 25, 899. 

 Stanley, W. M. (1936). Science 83, 626. 

 Stanley, W. M. (1945). J. Exptl. Med. 81, 193. 

 Stanley, W. M., and Lauffer, M. A. (1939). Science 89, 345. 

 Stearn, A. E. (1949). Advances in Enzymol. 9, 25. 



Stent, G. S. (1953). Cold Spring Harbor Symposia Quant. Biol. 18, 255. 

 Stent, G. S., and Fuerst, C. R. (1955). J. Gen. Physiol. 38, 441. 

 Sturm, E., Gates, F. L., and Murphy, J. B. (1932). J. Exptl. Med. 55, 441. 

 Syverton, J. T., Berry, G. P., and Warren, S. L. (1941). J. Exptl. Med. 74, 223. 

 Takahashi, W. N., and Christensen, R. J. (1934). Science 79, 415. 

 Taylor, A. R., Kay, W. W., McLean, I. W., Jr., Oppenheimer, F., and Stimpert, F. D. 



(1957). J. hmminol. 78, 45. 

 Theiler, M. (1957). Proc. Soc. Exptl. Biol. Med. 96, 380. 

 Theiler, M., and Gard, S. (1940). J. Exptl. Med. 72, 49. 

 Thornberry, H. H. (1935). Phytophathology 25, 931. 

 Till, J. E., and Pollard, E. C. (1956). Arch. Biochem. Biophys. 63, 260. 

 Timm, E. A., McLean, J. W., Jr., Kupsky, C. H., and Hook, A. E. (1956). J. Immunol. 



11, 444. 

 Timofeeff-Ressovsky, N. W., Zimmer, K. G., and Delbriick, M. (1935). Nachr. Ges. Wiss. 



Gottingen Math, physik. Kl. Fachgruppen VI 1, 189. 

 Torlone, V. (1955). Boll. ist. sieroterap. milan. 34, 61. 

 Towarnizki, W. I. (1948). Quoted from Sinkovics (1956). 



Towarnizki, W. I., and Karlina, M. I. (1950), Quoted from Sinkovics (1956). 

 Trask, J. D., Melnick, J. L., and Wemier, H. A. (1945). Am. J. Hyg. 41, 30. 

 U.S. Public Health Service (1955). Technical Committee for Poliomyelitis Vaccine. 



Technical Report on Salk Poliomyelitis Vaccine. 

 U,S, Public Health Service (1957), Technical Committee for Poliomyelitis Vaccine. 



Control of the Manufacture of Poliomyelitis Vaccina. Report presented at 4:th Intern. 



Conf. Poliomyelitis, Geneva. 

 Vinson, C, G. (1932), Phytopathology 22, 965, 

 Wahl, R., and Latarjet, R. (1947). Atin. inst. Pasteur 73, 957. 

 Walker, J. F. (1953). "Formaldehyde." Reinhold, New York. 

 Watson, J. D. (1950). J. Bacteriol. 60, 697. 

 Watson, J. D, (1952). J. Bacteriol. 63, 473. 

 Wecker, E. and Schafer, W. (1957). Z. Naturforsch. 12b, 415, 

 Weigle, J, J., and Bertani, G. (1956). Virology 2, 344. 

 Wells, W. F., and Brown, H. W. (1936). Am. J. Hyg. 24, 407. 

 Welsch, J. N. and Adams, M. H. (1954). J. Bacteriol. 68, 122. 

 Welsch, M., and Minon, A. (1955a). Compt. rend. soc. biol. 149, 207, 

 Welsch, M., and Minon, A. (1955b). Compt. rend. soc. biol, 149, 1309. 

 Wesslen, T., and Dinter, Z. (1957). Arch. ges. Virusjorsch. 1, 394. 

 Wesslen, T., Lycke, E., Gard, S., and Olin, G. (1957), Arch. ges. Virusjorsch. 1, 125. 

 Whitehead, H. R. (1944), New Zealand J. Sci. Technol. 26, 201, 

 Whitehead, H, R., and Hunter, G, J, E, (1937), J. Pathol. Bacteriol. 44, 337, 



