INSECTS AND DISEASE
A POPULAR ACCOUNT OF THE WAY IN WHICH
INSECTS MAY SPREAD OR CAUSE SOME
OF OUR COMMON DISEASES
WITH MANY ORIGINAL ILLUSTRATIONS FROM
PHOTOGRAPHS
BY
RENNIE W. DOANE, A.B.
Assistant Professor of Entomology
Leland Stanford Junior University
LONDON
CONSTABLE & COMPANY LIMITED
1910
Copyright, 1910,
BY
HENRY HOLT AND COMPANY
Published August, 1910
THE QUINN & BODEN CO. PRESS
RAHWAY, N.J.
PREFACE
The subject of preventive medicine is one that is attracting world-wide attention to-day. We can hardly pick up a newspaper or magazine without seeing the subject discussed in some of its phases, and during the last few years several books have appeared devoted wholly or in part to the ways of preventing rather than curing many of our ills.
Looking over the titles of these articles and books the reader will at once be impressed with the importance that is being given to the subject of the relation of insects to some of our common diseases. As many of these maladies are caused by minute parasites or microbes the zoölogists, biologists and physicians are studying with untiring zeal to learn what they can in regard to the development and habits of these organisms, and the entomologists are doing their part by studying in minute detail the structure and life-history of the insects that are concerned. Thus many important facts are being learned, many important observations made. The results of the best of these investigations are always published in technical magazines or papers that are usually accessible only to the specialist.