26. 
27. 
28. 
29. 
30. 
Bil. 
82's 
33. 
34. 
35. 
36. 
37. 
38. 
39. 
40. 
41. 
42. 
43. 
44, 
Kates, Morris. 1956. City Planning Industrial-Plant Location. Hydrogen ir Fluoride, 
Air Pollution Handbook by Magill, Holden, and Ackley. McGraw-Hill Book Co., 
New York. 
Kotin, Paul. 1958. Air Pollution and Cancer. Experimental Tumor Prodvction with 
Air Pollutants. Proceedings--National Conference on Air Pollution. W:zsh.D. C., 
Nov. 18-20, 1958. pp. 228-231. U.S.D.H.E.W.-- Public Health Service. 
Lee, Aubrey M. 1952. Our newer knowledge of bovine hyperkeratosis (X-.lisease). 
Proceedings--U. S. Livestock Sanitary Assoc. pp. 175-194, 
Lee, Aubrey M. 1956. Hyperkeratosis. USDA Yearbook of Agriculture Animal Dis- 
eases. pp. 273-276. 
Leighton, R. E., Anthony W. B., Huff, J. S.,andRupel,I. W. Jcur. Dairy Sci. 36:601. 
Lewey, F. H. 1950. Neuropathological changes in nitrogen trichlor de intoxication of 
dogs. J. Neuropath. and Expt. Neurol. 9:396-405. 
Magill, Holden, and Ackley. 1956. Air Pollution Handbook. McGraw-Hill Book Co., 
New York. 
Maynard, L. A., andLoosi,J. K. 1956. Animal Nutrition. pp. 160,4th Edit. McGraw- 
Hill Book Co., Inc., New York. 
Mellanby, E. 1946. British Medical Jour. 2:885. 
Monlux A. W., Anderson, W. A., and Davis, C. L. 1956. A survey of tumors occur- 
ring in cattle, sheep, and swine. Am. J. Vet. Res. 17:646-677. 
Monlux, A. W., Anderson, W. A., and Davis, C. L. 1957. The diagnosis of squamous 
cell carcinoma of the eye (cancer eye) in cattle. Am. J. Vet. Res. 18:5-34., 
Monlux, A. W., and Davis, C. LL. 1953. Multiple schwannomas of cattle (nerve 
sheath tumors; multiple neurilemmomas; neurofibromatosis). Am. J. Vet. Res. 
14:499-509. 
Newell, G. W., and Schmidt, H. J. 1958. Effects of feeding Fluorine to dairy cattle-- 
A six year study, Am. J. Vet. Res. 19:363-375, 
Pace, J., and McDermott, E. E. 1952. Nature (London) 169:415, 
Panukcu, A. M., Brown, R.R., and Price, J. M. 1959. Tryptophane metabolites in 
the urine of Turkish cows with urinary bladder cancer. Cancer Res. 19:321-329. 
Phillips, P. H. 1956. Effects of air pollutants on farmanimals. Air Pollution Hand- 
book. Magill, Holden, and Ackley. McGraw-Hill Book Co., New York. 
Pritchard, W. R., Hammer, R., Sautter, J. H., andSchultze,M.O. 1956. Suscepti- 
bility of the horse to the toxic factor in trichloroethylene-extracted soybean oil 
meal. Am. J. Vet. Res. 17:441-443. 
Pritchard, W. R., Mattson, W. E., Sautter, J. H., and Schultze, M. O. 1956. The use 
of young calves for study of various aspects of toxicity of trichloroethylene- 
extracted soybean oil meal. Am. J. Vet. Res. 17:437-441. 
Pritchard, W. R., Mattson, W. E., Sautter, J. H., and Schultze, M. O. 1956. Failure 
to demonstrate the presence of a toxic factor in the milk of cows fed toxic speci- 
mens of trichloroethylene-extracted soybean oil meal. Am. J. Vet. Res. 17:444- 
445, 
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