390 SANITARY ENTOMOLOGY 



Oxyuris kunckeli Galeb is, according to De Magalhaes, found in 

 Periplaneta americana. 



It will be seen by the evidence presented that the cockroach is a 

 potential carrier of many disease organisms, but, however, it has not yet 

 been proven to be definitely a regular carrier of many. Those diseases 

 which you can most surely expect to be transmitted from time to time by 

 cockroaches are those in which the organism can be taken up from the 

 feces of man or animals and carried by the roaches to food. 



You can also see that the danger from cockroach transmission of 

 diseases is in small towns where there is little care about sanitation, and 

 where there is no sanitary sewerage. Any one who has traveled exten- 

 sively in the small towns of America can readily see how cockroaches could 

 transmit diseases by polluting food in hotel kitchens and even dining 

 rooms, and even by polluting the bread and food in the grocery stores 

 and meat markets. 



No one has really made a consistent study of the possibilities of cock- 

 roach transmission of diseases and there is very little doubt that, if such 

 studies could be conducted in a locality where disease transmission is pos- 

 sible, much evidence against the roach could be obtained. 



KEFERENCES 



Barber, M. A., 1914. — Philippine Joum. Science, Manila, vol. 9 B, No. 1, 

 pp. 1-4. 



Cao, G., 1906a.— Annali D'Igiene Sper., vol. 16, n. s., pp. 339-368. 



De Magalhaes, P. S., 1900. — Arch, de Parasit., vol. 3, p. 45-69. 



Fibiger, J., and Ditlevson, H., 1914. — Anat. Path. Inst, and Zool. Mus. 

 Univ. Copenhagen, vol. 25, 28 pp., 4 pits. 



Herms, W. B., 1915. — Medical and Veterinary Entomology, pp. 41-43. 



Herms and Nelson, 1913. — Am. Journ. Pub. Health, September. 



Kiister, H. A., 1902. — Inaugural Dissertation Doctorwiirde Univ. Heidel- 

 berg, 43 pp. 



Longfellow, R. C, 1913. — Am. Journ. Pub. Health, January, p. 68. 



Northrup, Z., 1913.— Michigan Agr. Exp. Sta., Tech. Bull. 18, 32 pp. 



Ransom, B. H., and Hall, M. C, 1915. — Journ. Parasitol.,.vol. 2, No. 2, 

 pp. 80-86. 



Seurat, L. G., 1916. — Bull. Scient. France et Belgique, ser. 7, vol. 49, 

 fasc. 4, pp. 310-314, 350. 



