Reports on Plague Investigations in India Issued by the Advisory Committee Appointed by the Sec. of State for India, the Royal Society and the Lister Institute. The reports include the reports of the Working Commission appointed by the Advisory Committee and reports on various contributory investigations. They are published in the _Jour. of Hygiene_ as "Extra Plague Numbers." All these reports deal very largely with the relation of the rat and flea to plague, and are commonly referred to as "Reports of Indian Plague Commission." The first number, Vol. VI, Sept., 1906, contains articles on "Experiments upon the Transmission of Plague by Fleas." "Note on the Species of Fleas Found on Rats, _Mus rattus_ and _Mus decumanus_ in Different Parts of the World." "The Physiological Anatomy of the Mouth-parts and Alimentary Canal of the Indian Rat Flea, _Pulex cheopis_," and other papers on the relation of rats to plague. The second number, Vol. VII, July, 1907, contains articles on "On the Significance of the Locality of the Primary Bubo in Animals Infected with Plague in Nature," "Further Observations on the Transmission of Plague by Fleas with Special Reference to the Fate of Plague Bacillus in the Body of the Rat Flea," "Experimental Production of Plague Epidemics Among Animals," "Experiments in Plague Houses in Bombay," "On the External Anatomy of the Indian Rat Flea and Its Differentiation from Some Other Common Fleas," "A Note on Man as a Host of the Indian Rat Flea," and others on the relation of rats to plague. The third number, Vol. VII, Dec., 1907, contains articles on "Digest of Recent Observations on the Epidemiology of Plague" (Bibliography), "Epidemiological Observations in Bombay City," "Epidemiological Observations in the Villages of Wadhala, Parel, Worli in the Neighborhood of Bombay Village," "General Considerations Regarding the Spread of Infection, Infectivity of Houses, etc., in Bombay City and Island," "Epidemiological Observations in the villages of Dhand and Kasel (Punjab)." The fourth number, Vol. VIII, May, 1908, contains articles on "The Part Played by Insects in the Epidemiology of Plague" (see also ref. under D.T. Verjbitski), "Observations on the Bionomics of Fleas with Special Reference to _P. cheopis_," "The Mechanism by Means of Which the Flea Cleans Itself of Plague Bacilli," "On the Seasonal Prevalence of Plague in India." See also under Fleas. FLEAS BAKER, C.F. Fleas and Disease. _Science_, N.S., Vol. 22, No. 559, Sept. 15, 1905, p. 340. Discusses the possibility of fleas transmitting leprosy.