COURSES IN ENTOMOLOGY 



A. Undergraduate. 



Undergraduate entomology begins in the junior year. An intro- 

 ductory course in the subject is given, adapted to the needs of the 

 various students electing it. Many of these expect to take no further 

 work in the subject, specializing in other lines, and accordingly the 

 topics chosen are such as should prove most useful in general. 



A brief consideration of the structure of insects, external and 

 internal, is therefore followed by an outline of different kinds of 

 metamorphosis, and this by a systematic treatment of the various 

 orders, particular stress being laid upon those of greatest economic 

 importance. Under each of these groups the most serious pests are 

 considered in some detail, their dift'erent stages being discussed, the 

 times at which they can be most successfully attacked, and the methods 

 for their control. Spraying materials and methods of applying them 

 are also taken up to some extent. Field and laboratory work given 

 as a part of this course during that portion of the time when the season 

 will permit, are devoted to examination and recognition of the work of 

 different insects out of doors, to collecting, methods of pinning, spread- 

 ing and mounting of insects, and a general classification of them. 



In the senior year, a course is offered those students who desire 

 to become more thoroughly acquainted with the insects injurious to 

 special crops. In this work the student studies the external structure 

 of insects of each of the larger groups, as a basis upon which to 

 intelligently use keys for the determination of different insects, in 

 order that he may be able to learn the identity of any pest he may 

 subsequently meet. This is followed by the actual identification of 

 a number of insects in each order, to train the student where to find 

 and how to use the analytical keys. He then selects the most serious 

 pests of the crops which he plans to raise, for special study, using the 

 different articles available on these insects, and studying specimens 

 of the insects in the collections. The results of these studies are 

 brought together in note books which are retained by the student for 

 reference after leaving college and beginning work for himself. Dur- 

 ing the year a thorough course on the various insecticides, and methods 

 of applying them is also given. 



For those planning to become professional entomologists, instead 

 of studying the pests of some special crop, the worst pests of all kinds 

 are taken up, followed by studies on parasitism, group relations, etc., 

 giving the broader views needed for the general entomologist. Field 

 work in connection with this is given wherever it is possible, and 

 practical experience is emphasized. 



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