1900.] 28B 



" Anophtlea macu/ipennls, M., is not uncommon in the Mark Brandenburg, in 

 localities where water is abundant ; for instance, it is quite common about Freien- 

 waldo in midsummer. Its sting is more painful than that of any gnat I know, and 

 has a much more pernicious effect. During a botanical excursion of several days 

 which I made with some of my pupils, I noticed that the sting produced deep 

 purulent wounds, which it took several weeks of careful medical treatment to heal " 

 (Ruthe, Oken's Isis, 1831, p. 1203). 



Heidelberg : November 5th, 1900. 



OUTLINE OF COURSE IN ENTOMOLOGY AT THE MASSACHUSETTS 

 AGRICULTURAL COLLEGE, AMHERST, MASS. 



[We reprint the following as a sample of the thoroughness of a 

 course in entomology, and especially its economic side, as taught in 

 one of the principal Agricultural Colleges in the United States. The 

 Professor in this case is Dr. H. T. l^ernald, a relative of Dr. C. H. 

 Pernald, who is Professor of Zoology in the same College. — Eds.]. 



A course of six hours a week is offered in entomology during the 

 summer term, its aim being to give a general knowledge of insect 

 anatomy and physiology, and a systematic review of the entire group, 

 taking as types, as far as possible, those forms of economic interest to 

 man, and at the same time giving an idea of the life-history of each 

 species so taken and the means of combating it. A knowledge of 

 insecticides and insecticide machinery and their use is given. An 

 interesting feature of the course is the collection which each student 

 makes and arranges of the more common species which may be found 

 on the college grounds and the near-by region. A very full museum 

 collection serves as an aid to identification and arrangement. 



SENIOE ENTOMOLOGY. 



During the senior year such members of this class as elect 

 advanced entomology take a course of lectures on the external and 

 internal anatomy of insects, and on the various methods by which the 

 injurious forms are destroyed or held in check. The laboratory work 

 consists of a critical study of the external and internal anatomy of 

 members of the different groups, followed by the determination of 

 insects of each group. In connection wath this work a careful study 

 of the literature is made, and familiarity with the analytical keys 

 and the more important articles on injurious species is obtained. 

 During the spring term much of the time is spent in the field, where 

 the student is taught how to look for and find injuries caused by 

 insects, to recognise the species by the nature of the injuries, and 



