Bernhard, W., and Grqss, L:, 'Presence' de particules d’aspect virusal dans les 
tissus tumoraux’de souris attelntes de leucemies induites. Compt. Rend. Acad 
Sci. (Paris), 248: 160-163,' 1959. 
Bernhard, \V., Febvre, H. L., and Cramer, R., Mise en evidence au microscope 
electronique d’un virus dans' des cellules infectees in vitro par l’agent du 
Polyome. Compt. Rend. Acad.- Sci. (Paris), 249: 483-485, 1959. 
Bielka, H., and Gkaffi, A., Untersuchungen uber die leukamogene Wirkung von 
Nukleinsauren aus virustnduziertem Leukamiegewebe. Acta Biologica 
Medica Germanica, 3: 515-517, 1959. 
Boiron, M., Paoletti, C., Thomas, M., Rebiere, J.-P., and Bernard, J., Acide 
desoxyribonucleique infectieux extrait de cultures de cellules de rein de Singe 
Babouin infectees par le virus SV 40. Compt. Rend. Acad. Sci. (Paris) , 254- 
2097-2099, 1962. 
Brenner, S., and Horne, R. W., A negative staining method for high resolution 
electron microscopy of viruses. Acta Biochim. and Biophys., 34: 103-110 
1959. . 
Brodsky, I., Rowe, W. P ., Hartley, J. W., and Lane, W. T., Studies of mouse 
polyoma virus infection. II. Virus stability. J. Exp. Med., 109: 439—447, 1959. 
Buffett, R. F., Commerford, S. L., Furth, J., and Hunter, M. J., Agent in Ak 
leukemic tissues, not sedimented at 105,000 g causing neoplastic and non- 
neoplastic lesions. Proc. Soc. Exp. Biol. & Med., 99: 401-407, 1958. 
Burnet, F. M., Principles of Animal Virology, p. 486, Academic Press, New York 
1955. 
Burnet, F. M., and Stanley, W. M., The Viruses, Vol. 1, General Virology, p. 
609; Vol. 2, Plant and Bacterial Viruses, p. 408; Vol. 3, Animal Viruses, p. 
428. Academic Press, New York, 1959. 
Burton, L., Friedman, F., Kassel, R. Kaplan, M. L., and Rottino, A., The 
purification and action of tumor factor extracted from mouse and human neo- 
plastic tissue. Trans. N.Y. Acad. Sci., 21: 700-707, 1959. 
Carrel, A., Some conditions of the reproduction in vitro of the Rous virus. J. Exp. 
Med., 43: 647-688, 1926. 
Chesterman, F. C., and Negroni, G., Tumours and other lesions induced in 
golden hamsters by a polyoma virus (Mill Hill strain): Induction time and 
' dose response. Brit. J. Cancer, 15: 790—797, 1961.' 
Colter, J. S., Bird, H. H., and Brown, R. A., Infectivity of ribonucleic acid from 
Ehrlich ascites tumour cells infected with Mengo encephalitis. Nature , 179: 
859-860, 1957. 
Colter, J. S., Bird, H. H., Moyer, A. W., and Brown, R. A., Infectivity of 
ribonucleic acid isolated from virus-infected tissues. Virology, 4: 522— 532, 1957. 
Constantin, T.', and Febvre, H., Les corps d’inclusion observes dans les cultures 
de tissus infectees par le virus du fibrome de Shope du lapin. Compt. Rend. 
Soc. Biol., 150: 114-116, 1956. 
Crawford, L. V., and Crawford, E. M., A comparative study of polyoma and 
papilloma viruses. Virology, 21: 258-263, 1963. 
Crick, F. H. C., and Watson, J. D., Structure of small viruses. Nature, 177: 
473-475, 1956. 
Dawe, C. J., and Law, L. W., Morphologic changes in salivary-gland tissue 
of the newborn mouse exposed to parotid-tumor agent in vitro. J. Nat. Cancer 
Inst., 23: 1157-1177, 1959a. 
Dawe, C. J., Law, L. W., and Dunn, T. B., Studies of parotid-tumor agent in 
cultures of leukemic tissues of mice. jf. Nat. Cancer Jnst., 23:717—797, 1959b. 
[Appendix C— 157] 
