82 THE CANADIAN ENTOMOLOGIST. 



The locust area assigned to each Commissioner the present year is as 

 follows : — 



1. Prof. Riley takes for his field the region east of the mountains and 

 south of the 40th parallel, the west half of Iowa, and, conjointly with 

 Dr. Packard, British America west of the 94th meridian, where the prin- 

 cipal source of the devastating swarms will probabl)^ be found. 



2. Dr. Packard Avill take for his field West Wyoming, Montana, 

 Utah, Idaho, and the Pacific Coast. 



3. Prof. Thomas takes all the region east of the mountains not 

 enumerated, including Nebraska, Minnesota, etc. 



The publications will consist of circulars, bulletins, memoirs, and the 

 annual report of doings and results of the work of the Commission. 



To Prof. Riley are assigned more particularly the following divisions 

 of the subject : Biology, or Natural History ; Insect Enemies and Para- 

 sites ; Remedies and Devices for Destruction. 



To Dr. Packard : Anatomy and Embryology. 



To Dr. Packard and Prof. Thomas, conjointly : Meteorological Bear- 

 ings and Migrations. 



To Prof. Thomas : Geographical Distribution, Enemies not Entomo- 

 logical, Agricultural Bearings of the Subject. 



The Commission expects to secure co-operation with the United States 

 Signal Bureau in affording meteorological data in connection with a study 

 of the migrations of the locust ; also, hopes to secure the aid of the 

 Canadian Government in co-operating with it in its investigations in 

 British America. 



It is the determination of the Commission to confine its operations 

 more particularly to the practical bearings of the subject, with a view to 

 ascertain all possible remedies against these destructive insects. All else 

 will be made subservient to the great object for which the appropriation 

 was made, to wit : — 



1. The best means of fighting the plague as it occurs in the States to 

 which it migrates, but in which it is not indigenous. 



2. The thorough investigation into its habits in its native home, with 

 a view of preventing, if possible, its migrations therefrom. 



The following are the topics on which data are requested from 

 observers in all parts in reference to the destructive locust : — 



