196 



Insects and Disease 



Rucker, W. C. Plague Among Ground-squirrels in Contra 

 Costa Co., Cal. Pub. Health Reports, Pub. Health and Mar. 

 Hospt. Ser. y Aug. 27, 1909. Reports of human cases supposed 

 to be connected with plague among ground-squirrels. Plague 

 among squirrels; habits, methods of righting, etc. 



Rucker, W. C. Fighting an Unseen Foe. Sunset Mag., XXII, 

 No. 2, Feb., 1909. Story of the fight against plague in San 

 Francisco. 



Shipley, A. E. Rats and Their Animal Parasites. Jour. Eco. 

 Biology, Vol. Ill, No. 3, Oct. 28, 1908. List of species of ecto- 

 and endoparasites. 



Simpson, W. J. A Treatise on Plague. Cambridge Univ. Press, 

 London, 1906. Deals with historical, epidemiological, clinical, 

 therapeutic and preventive aspect of the disease. 



Thompson, J. A. The Mode of Spread and Prevention of 

 Plague in Australia. Lancet, Oct. 19, 1907, p. 1104. Rat 

 fleas the essential factor in transmitting plague, and preventive 

 methods should be directed against the rats. 



Thompson, J. A. On the Epidemiology of Plague. Jour. Hyg., 

 Vol. VI, No. 5, Oct., 1906. Methods of infection, spread, 

 relation of rats to the disease and a review of the rat -flea 

 theory. Bibliography. 



Verjbitski, D. T. The Part Played by Insects in the Epi- 

 demiology of Plague. Jour. Hyg., 8, 1908, No. 2, pp. 

 162-208. Record of extensive experiments with fleas. Fleas 

 communicated plague for three days, bedbugs for five days. 

 Interrelation of fleas, rats, dogs, cats, and man. An important 

 article translated from Russian. 



Wherry, W. B. Further Notes on the Rat Leprosy and on the 

 Fate of the Human and Rat Leper Bacillus in Flies. Jour. 

 Injec. Diseases, Vol. 5, No. 5, 1908. Discussion and references, 

 experiments with flies, summary, etc. More than 1,115 lepra - 

 like bacilli were counted in a single fly-speck. 



Wherry, W. B. Plague Among the Ground-squirrels of Cali- 



