. Annals of the Entomological Society of America. Entomology. ANNALS OF ?— .-, The Entomological Society of America Volume XIV SEPTEMBER, 192 1 Number 3 SOME LITTLE EMPHASIZED GUIDE-POSTS TO MEDICAL ENTOMOLOGY.* William A. Riley. To address the members of the Entomological Society of America on the subject of the history of medical entomology may seem a needless presumption. ' Immediately when the topic is mentioned there occurs the thought that medical ento- mology is a branch of our favorite study too young to have a history. The discoveries of the relations of insects to disease which have


. Annals of the Entomological Society of America. Entomology. ANNALS OF ?— .-, The Entomological Society of America Volume XIV SEPTEMBER, 192 1 Number 3 SOME LITTLE EMPHASIZED GUIDE-POSTS TO MEDICAL ENTOMOLOGY.* William A. Riley. To address the members of the Entomological Society of America on the subject of the history of medical entomology may seem a needless presumption. ' Immediately when the topic is mentioned there occurs the thought that medical ento- mology is a branch of our favorite study too young to have a history. The discoveries of the relations of insects to disease which have revolutionized the attempts to control some of the most devastating diseases of man and animals have been made within the memory of even the younger in this audience. So spectacular have they been in some instances, and so far-reaching in their application that they have been featured by the pop- ular magazines and by the daily press. Today it is common knowledge that many diseases, whose origin and spread were shrouded in mystery a few short years ago are insect borne. It is often said that these discoveries have all been made within the past twenty-five years. And yet, the worker in science knows that no new discovery—no pregnant theory— originates suddenly. There is no more a spontaneous generation of important scientific theories, uninfluenced by pre-existing knowledge and thought than there is spontaneous generation of the higher forms of life. *Annual address before the Entomological Society of America, Chicago, 111., December, 1920. 159. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of America. [College Park, Md. , etc. ] : Entomological Society of America


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1