IV 



HANDBOOK OF MEDICAL ENTOMOLOGY 



Wm. A. Riley, Professor of Insect Morphology and Parasitology, and 

 O. A. Johannsen, Professor of Biology, Cornell University. 



A concise, up-to-date reference and text on parasitic and poisonous insects, espe- 

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Bound in library buckram. 8vo. Now Ready. 350 pp. Fully Illustrated. 



Postpaid $2.20 



Prospectus on application. 



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IT IS A WELL KNOWN FACT THAT FLIES CARRY DISEASE; AN EASY 

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The above method is strongly recommended by physicians and such authorities as 

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Entomological Books For Sale 



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