220 Insects and Disease 



Nuttall, G. H. F. Spirochetosis in Man and Animals. Jour, 

 of Roy. Inst, of Pub. Health, 1908. Why Spirochetes should 

 be regarded as Protozoa. Classification; list of blood-inhabiting 

 forms; relapsing fevers; transmission by ticks and other 

 Arthropods. 



O'Connell, M. D. The Oversea Transport of Insect-borne 

 Disease. Jour. Trop. Med. &° Hyg., XI, 43, Feb. 1, 1908. 

 Refers to article in same journal (Jan. 15) and points out that 

 malaria is very likely to be transmitted by mosquitoes in this way. 



Osborn, Herbert. Insects Affecting Domestic Animals. 

 U. S. Dept. 0) Agric, Div. 0} Ento., Bull. No. 5, N. S., 1896. 

 Discusses the various insect pests of man and domestic animals 

 Host lists. Bibliography. 



Rickets, H. T., and Wilder, R. M. The Typhus Fever of 

 Mexico. Jour. Amer. Med. Assn., LIV, No. 6, Feb. 5, 19 10, 

 p. 463. Believes this disease is transmitted by insects, probably 

 lice. 



Ritchie, James. A Review of Current Theories Regarding 

 Immunity. Jour. Hyg., 2, 1902, pp. 215-285, and pp. 452- 

 464. Discussion of various theories. Bibliography. 



Shipley, A. E. On the Relation of Certain Cestode and Nema- 

 toda Parasites to Bacterial Disease. Jour. 0} Eco. Biol., 4, 

 1909, pp. 61-71. Shows that these parasites may often cause 

 serious diseases by opening the way for malignant germs. 



Ward, H. B. Spirochetes and Their Relationship to Other 

 Organisms. Amer. Nat., 42, 1908, No. 498, pp. 374-387. 

 Still undecided as to whether they belong with bacteria or 

 Protozoa, probably the latter. 



Ward, H. B. The Relation of Animals to Disease. Science, 

 N. S., 22, 1905, pp. 193-203. An interesting, comprehensive 

 review of the subject. 



Ward, Henry B. Relation of Animals to Disease. Transactions 

 of Amer. Micro. Soc, Vol. 27, 1907, pp. 5-20. The various 

 ways in which animals may produce or carry disease. 



