REPORTS ON PLAGUE INVESTIGATIONS 
IN INDIA 
ISSUED BY THE ADVISORY COMMITTEE APPOINTED BY THE SECRETARY 
OF STATE FOR INDIA, THE ROYAL SOCIETY, AND THE LISTER 
INSTITUTE. 
(. Forming four extra numbers of the Journal of Hygiene : vol. VI. no. 4, Price 
6s. net; vol. vil. no. 3, Price 6s. net; vol. vn. no. 6, Price 6s. net; and 
vol. viii. no. 2, Price 6s. net.) 
Contents of the First Plague Number, September 1906. 
Introduction 
I. Experiments upon the transmission of plague by fleas 
II. Note on the species of fleas found upon rats, Mus rattus and 31 as decumanus, in different 
parts of the world, and on some variations in the proportion of each species in 
different localities. By the Hon. N. Charles Rothschild 
III. The physiological anatomy of the mouth-parts and alimentary canal of the Indian rat 
flea, Pulex cheopis, Rothschild 
IV. On the effect upon virulence of passage of B. pestis through rats by subcutaneous inocu¬ 
lation without intermediate culture 
V. On the effect upon virulence of passage of B. pestis through rats by cutaneous inoculation 
without intermediate culture 
VI. A note on the immunity of Bombay rats to subcutaneous injection of plague cultures 
VII. On the infectivity of floors grossly contaminated with cultures of B. pestis 
VIII. On the number of plague bacilli in the blood, urine, and faeces respectively of rats which 
had died of plague 
IX. On the quantitative estimation of the septicaemia in human plague 
X. On the existence of chronic plague in rats in localities where plague is endemic 
116 pp., with 6 Plates and 6 Folding Tables. 
Contents of the Second Plague Number, July 1907. 
The diagnosis of natural rat plague 
The pathological histology of the spleen and liver in spontaneous rat plague, with obser¬ 
vations on the experimental infection. By J. C. G. Ledingham, M.B., B.Sc., M.A. 
Transmission of plague by feeding rats with infected material 
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 the plague bacillus in the body of the rat flea ( P. cheopis) 
Experimental production of plague epidemics among animals. (Second Communication) 
Experiments in plague houses in Bombay. (Second Communication) 
On the external anatomy of the Indian rat flea (P. cheopis), and its differentiation from 
some other common fleas 
On the natural occurrence of chronic plague in rats 
A note on man as a host of the Indian rat flea (P. cheopis) 
154 pp. with 6 Plates. 
Contents of the Third Plague Number, December 1907. 
XXI. Digest of recent observations on the epidemiology of plague 
XXII. The epidemiological observations made by the commission in Bombay City 
XXIH. Observations made in four villages in the neighbourhood of Bombay 
XXIV. General considerations regarding the spread of infection, infectivity of houses, etc., in 
Bombay City and Island 
XXV. Observations in the Punjab villages of Dhand and Kasel. 
302 pp., with 23 Plates, and 76 maps and charts. 
Contents of the Fourth Plague Number, May 1908. 
XXVI. The part played by insects in the epidemiology of plague. By D. T. Verjbitski, M.D., 
St Petersburg 
XXVII. Report on experiments undertaken to discover whether the common domestic animals of 
India are affected by plague. By W. B. Bannerman and R. J. Kapadia 
XXVIII. Additional experiments on the septicaemia in human plague, with an account of 
experiments on the infectivity of the excreta 
XXIX. Observations on the bionomics of fleas with special reference to Pulex cheopis 
XXX. The mechanism by means of which the flea clears itself of plague bacilli 
XXXI. On the seasonal prevalence of plague in India 
XXXII. On the differential diagnosis of the plague bacillus from certain allied organisms 
148 pp. with 7 charts. 
XI. 
XII. 
XIII. 
XIV. 
XV. 
XVI. 
XVII. 
xvru. 
XIX. 
xx. 
CAMBRIDGE UNIVERSITY PRESS , FETTER LANE, LONDON 
C. F. OLA Y, Manager 
