ANIMAL PARASITES 125 



Kessel, J. T., 1924. The distinguishing characteristics of the parasitic 



amoebae of culture rats and mice. Univ. Calif. Pub. Zoology, 20 (23): 



489-544. 

 Kessel J. T., 1928. Intestinal protozoa of the domestic pig. Am. Jour. 



Trop. Me,!., 8 (5): 481-501. 

 Kudo., R, 1922. On the protozoa parasitic in frogs. Trans. Am. Micro. 



Soc, 41: 59-76. 

 Ransom, B. H., 1911. The nematodes parasitic in the alimentary tract of 



cattle, sheep and other ruminants. U. S. Dept. Agr., Bur. An. Ind., 



Bull. 127, 132 pp. 

 Ransom, B. H., 1920. Synopsis of the trematode family Heterophyidae 



and descriptions of a genus and five new species. Proc. U. S. Nat. 



Museum, 57: 527-573. 

 Riley, W. A., and H. C. H. Kernkamp 1924. Flukes of the genus Collyri- 



clum as parasites of turkeys and chickens. Jour. Am. Vet. Med. 



Assoc, 64 (5): 591-599. 

 Schwartz, B., and W. B. Shook, 1928. Rabbit parasites and diseases. 



U. S. Dept. Agr., Farmer's Bull. 1568, 30 pp. 

 Van Cleave, H. J., 1920. Acanthocephala parasitic in the dog. Jour. 



Parasitology, 7: 175-178. 

 Walton, A. C, 1929. Studies on some nematodes of North American 



frogs. Jour. Parasitology 15 (4) : 227-239. 

 Yorke, W., and P. A. Maplestone, 1926. "The nematode parasites of 



vertebrates," 536 pp. P. Blakiston's Son and Company, Philadelphia 



SUPPLY HOUSES HANDLING PARASITOLOGICAL 

 MATERIALS 



Until recently there has been little opportunity to purchase well-prepared 

 slides and gross materials of parasitological interest. The situation is 

 changing and now a considerable number of biological supply houses carry 

 such preparations. The following firms may be cited from personal knowl- 

 edge. The list, of course, makes no pretense of completeness. 

 Bauer, Conrad, Johns Hopkins School of Hygiene, Baltimore, Maryland. 

 Biological Supply Service, Soochow University, Soochow, China. 

 Denoyer-Geppert C, 5235 Ravenswood Ave., Chicago, Illinois. 

 Etablissement du Docteur Auzoux, 56 rue de Vaugirard, Paris (6), France. 

 Galigher, Albert E., 1057 Solono Ave., Berkeley, California. 

 General Biological Supply House, 761 E. 59th Place, Chicago Illinois. 

 Pacific Biological Laboratories, Pacific Grove, California. 

 Powers and Powers, Station A, Lincoln, Nebraska. 

 Similiter and Mass, Naturwissenschaftliche Lehrmittel-Anstalt Halle a. S., 



Germany. 

 Southern Biological Supply Company, Natural History Building, New 



Orleans, Louisiana. 

 Watson and Sons, 313 High Holborn, W.C.I. London, England. 



COMPREHENSIVE TEXTS 



Baylis, H. A., 1929. "A Manual of Helminthology, Medical and Vet- 

 erinary," xi + 303 pp. William Wood and Company, New York. 



