172 THE CANADIAN ENTOMOLOGIST. 



will extend its benefits to our successors in coming centuries. In addition 

 to the biological collection, two others have been arranged : the one com- 

 prising the insects of North America, and the other those of the world. 

 Of the number of type specimens contained in these collections, there is 

 not the time at present, nor is it the occasion, for more than simple men- 

 tion. The student in American Entomology, who aims to be fully abreast 

 of the most advanced progress in his line of study, cannot neglect the 

 means of information which the Collections and Library of the Entomo- 

 logical Department at the Cambridge Museum ofifer him. 



The published results of economic investigations during the year have 

 been quite limited. In consideration of the exceeding importance of these 

 studies, it is painful to have to record the fact of the issue of but one 

 Annual Report of a State Entomologist— that of Cyrus Thomas. This 

 second report of Dr. Thomas, forming the seventh in the series of the 

 Illinois reports, is a volume of nearly 300 pages. In it Dr. Thomas dis- 

 cusses the depredations of some of the Orthoptera, Coleoptera and 

 Hemiptera. Prof. G. H. French, Assistant Entomologist, presents brief 

 descriptions of a large number of diurnal. and nocturnal Lepidoptera and 

 their larvae, with notices of their habits, accompanied by analytical tables 

 for their identification. Miss Emma A. Smith, special Assistant Ento- 

 mologist, offers the results of original investigations in some species of 

 special economic importance. The publication of this and the preceding 

 Report, without, as is evident, the opportunity of the revision and cor- 

 rection of proof by the authors, is much to be regretted, as serious errors 

 in the nomenclature and elsewhere have thereby been given extensive 

 circulation. 



The Annual Report of the Entomological Society of Ontario, making 

 the ninth in the series, contains its usual amount of matter of interest to 

 the entomologist, and of value to the agriculturist and horticulturist. 



Several articles treating of insect depredations have appeared in our 

 scientific journals, which cannot now be referred to. 



The United States Entomological Commission, continued by an appro- 

 priation by the last Congress of $10,000, is actively engaged in its second 

 year's operations. In its investigations of the Rocky Mountain Locust, 

 its labors have been almost entirely confined to that portion of country 

 designated as the Permanent region, with a view of determining the limits 

 of these permanent breeding .grounds, and to obtain the requisite data for 

 the preparation of a map, and a scheme to be recommended to the Gov- 



