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Cambridge University Press, England 



Flies in Relation to Disease — Non=Bloodsucking Flies 



By Q. S. QRAHAM-SMITH, M.D. $3.50 net 

 The first volume of the Public Health Series 



The books included in the Series present in a useful and handy form the knowl- 

 edge 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 con- 

 nected with the various themes or in their application and administration. They 

 include the latest scientific and practical information offered in a manner which is 

 not too technical. The bibliographies contain references to the literature of each 

 subject which will ensure their utility to the specialist. — Extract from the general preface. 

 Detailed Catalogue sent on request 



Recent additions to the 



Cambridge Manuals of Science and Literature 



80 volumes ready : others in active preparation 



No. 71. Natural Sources of Energy 



40 cents net per volume. 



A. H. Gibson. 



72. The Fertility of the Soil. E.J.Russell. 



73. The Life Story of Insects. G. H. Carpenter. 



74. The Flea. H. Russell. 



75. Pearls. W. J. Dakin. 



76. Naval Warfare. J. R. Thursfield. 



77. The Beautiful. Vernon Lee. 



78. The Peoples of India. J.D.Anderson. 



79. The Evolution of New Japan. J.H.Longford. 



80. A Grammar of Heraldry. W. H. St. John Hope. 



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