1911] The Ottawa Naturalist. 7 1 



or Scale Insects of Canada, and the second an account of the 

 Aleyrodidae ("White Fly") of Ontario. Prof. J. M. Swaine 

 "describes the life-histories and habits of several species of 

 scolytids attacking the larch, his observations being a valuable 

 addition to our all too meagre knowledge of the bionomics of the 

 bark-beetles of Canada. He also describes the chief injurious 

 insects of the year in eastern Quebec. Mr. Arthur Gibson makes 

 some additional notes to his previous lists of insects attacking 

 the basswood, or linden, and contributes "The Entomological 

 Record for 1910," which is of no little value to entomologists in 

 Canada. It is to be regretted that the report of Prof. James G. 

 Needham's address on "The Role of Insects in Water Life" is 

 in the form of a brief abstract. The subject is one not only of 

 the greatest interest but of inestimable importance, especially 

 in Canada where we have so much fresh-water life and where 

 the conservation of our fresh-water fishes is in a large part de- 

 pendent upon the amount of available food material which con- 

 sists chiefly of fresh-water insects. 



C. Gordon Hewitt. 



The Home-life of a Golden Eagle, photographed and de- 

 scribed by H. B. Macpherson, with thirty-two mounted 

 plates. Second revised edition: London; Witherby & Co., 

 326 High Holborn, W.C. Published Price 5/- net. ' 

 The second edition of this delightful story of the home-life 

 of a Golden Eagle, the King of Birds, has recently appeared. 

 The spot chosen by the eagles was in a wild deer-forest situated 

 in the heart of the Grampian range in Scotland. The nest was 

 high up on a narrow ledge, and could only be reached with 

 difficulty. A hiding place, close to the eyrie, was made and 

 here the author was able to conceal himself and his cameras 

 for hours at a time waiting for opportunities to photograph the 

 birds and take notes of their habits. The 32 photographs secured 

 are remarkably good and the running story told of the two 

 parent birds and their young is most fascinating. The book 

 should have a wide sale among nature lovers. It is beautifully 

 printed, and the general "get up" excellent. 



A. G. 



The Committee on Public Health of the Commission of 

 Conservation, have just issued a "Report on the Epidemic of 

 Typhoid Fever occurring in the City of Ottawa, January 1st to 

 March 19th, 1911." The report is an exhaustive one, covering 

 48 pp. It contains three maps and a number of full page 

 photographic illustrations showing unsanitary conditions. 



