34 THE CANADIAN ENTOMOLOGIST 



hour, they rose in irregular widening spirals to a height of fifty 

 feet and flew off in the direction of the water. It is not known 

 whether these specimens ever reached the pond, inasmuch as trees 

 obstructed the view. Nevertheless they started in the correct 

 direction even against a slight breeze. 



BOOK NOTICES. 



The Natural History of the Toronto Region, Ontario, Canada; 

 published by the Canadian Institute, Toronto, 1913; 419 pp., with 

 several illustrations and maps. 



This work which has been prepared for the members of the 

 Twelfth Geological Congress, which recently met in Canada, and 

 for all who may have an interest in the history and natural history 

 of the Toronto district, is a most interesting and valuable con- 

 tribution. The twenty-two chapters (there are twenty-three, but 

 the last describes briefly localities for excursions) have all been 

 written by specialists. The titles of the chapters will give a 

 splendid idea of the scope of the work. These are: I, Toronto, 

 an Historical and Descriptive Sketch; II, The Indians who formerly 

 Inhabited or Visited the Site of Toronto; III, Geology of the Toronto 

 Region; IV, The Climate of Toronto; V, Life zones; VI, The Seed 

 Plants of Toronto and Vicinity; VII, Ferns and Fern Allies 

 VIII, Mosses and Liverworts; IX, Mushrooms and other Fungi 

 X, The Alga?; XI, Lichens; XII, Mycetozoa, or Slime Moulds 

 XIII, Insect Galls of the Vicinity of Toronto; XIV, Zoology 

 XV, Mammals; XVI, Birds; XVIL Reptiles; XVIII, Amphibia 

 XIX, Fishes; XX, Invertebrates other than Insects and Mollusks 

 XXI, Mollusca; XXII, Insects and their Allies. 



In Chapter XIII Dr. Cosens discusses briefly the various types 

 of galls and follows with lists of gall insects in the various orders. 

 Lseful notes are given with each species. Under Hemiptera nine 

 species, are listed, under Lepidoptera four species, under Diptera 12 

 species under Coleoptera two species, under Hymenoptera 39 

 species. Dr. E. M. Walker is responsible for Chapter XXII, the 

 largest in the book, comprising pp. 295-403. This chapter, as already 

 mentioned, is devoted to Insects and their Allies. Although the lists 

 presented are by no means complete, as is stated, they are, how- 



