THE CAMBRIDGE 
PUBLIC HEALTH SERIES 
Under the Editorship of 
G. S. GRAHAM-SMITH, M.D., and J. E. PURVIS, M.A. 
The books included in this series present in a useful and handy form the 
knowledge now available in many branches of the subject. They are written 
by experts, and the authors are occupied, or have been occupied, either in 
investigations connected with the various themes or in their application and 
administration. It is hoped that the volumes will be useful to the medical 
profession at home and abroad, to bacteriologists and laboratory students, to 
municipal engineers and architects, to medical officers of health and sanitary 
inspectors and to teachers and administrators. Details of the four volumes 
already published will be found below, and a list of volumes in preparation 
will be sent on application. 
The Chemical Examination of Water, Sewage, Foods and 
Other Substances. By J. E. Purvis, M.A., University Lecturer in 
Chemistry and Physics as applied to Hygiene and Public Health, 
Cambridge, and T. R. Hodgson, M.A., Public Analyst for the County 
Boroughs of Blackpool and Wallasey. Demy 8vo. 9s. net. 
This book is intended for the use of students who are attending courses of instruction for 
diplomas and degrees in Public Health, and for those who are studying the chemistry of water, 
sewage, sewage effluents, foods, disinfectants, etc. during their ordinary laboratory practice. 
It will probably be also useful to those who are engaged as public analysts or in public health 
matters generally. It does not give an exhaustive account of all the available methods of 
examination, but it describes those which have been used and tested by the authors both in 
laboratory instruction and in the daily work of a public analyst. 
The Bacteriological Examination of Food and Water. Bv 
William G. Savage, B.Sc., M.D., D.P.H., County Medical Officer of 
Health, Somerset. Demy 8vo. With 16 illustrations. Is. 6d. net. 
“A hearty welcome will be accorded this compact guide, not only because it is eminently 
practical in its methods and directions, but also because it has been written by a man who has 
been accustomed to do the work himself and to depend upon it as a basis for administrative 
action. ...To all engaged in the administration of the public health...the book may be cordially 
commended .”—Birmingham Daily Post 
Flies in Relation to Disease. Non-Bloodsuckiug Flies. By G. S. 
Graham-Smith, M.D., Lecturer in Hygiene in the University of 
Cambridge. Demy 8vo. Second edition, revised and enlarged. With 
27 plates, 32 text-figures and 20 charts. 12s. 6d. net. 
“The fact that the book is published at the Cambridge University Press is sufficient 
guarantee of the* excellence of the printing and binding....We can only say that if the other 
volumes of this series...are as good as this one, a very high standard of excellence will have to 
be maintained. We consider that no one in the Public Health Service should be without this 
book .”—Medical Times on the first edition 
Isolation Hospitals. By H. Franklin Parsons, M.D., D.P.H., formerly 
First Assistant Medical Officer of the Local Government Board. Demy 
8vo. With 55 text-figures. 12s. 6d. net. 
“Eminently practical in character, it is at the same time complete in its information, so 
that the medical officer may rely with confidence on finding accurate and impartial facts on 
matters connected with the isolation of infectious cases....The volume should appeal very 
strongly to all medical officers of health, tuberculosis officers, and sanitary authorities, to whom 
it can be recommended with all heartiness .”—Aberdeen Free Press 
CAMBRIDGE UNIVERSITY PRESS, FETTER LANE, LONDON 
C. F. OLA Y, Manager 
