The Oo/ogisis' Record., September i, 1921. 71 



Published by the National Geographic Society, Washington, 

 D.C., U.S.A. Price $3 ; postage outside the U.S., 36 cents. 



• 



Mr. Gilbert Grosvenor, President of the National Geographic 

 Society, was good enough to send us for review a copy of the above 

 work which, though published in 1918, is probably new to most of 

 our readers. Seldom has a bird book of more absorbing interest 

 come into our hands, dealing as it does with so many interesting 

 features of bird study. 



Dr. Henshaw, who is responsible for the major portion of the 

 text, discourses on the life history of most of the better known 

 .species and deals particularly with the economic aspect of bird 

 life in its relation to agriculture. The great work done by the U.S. 

 Biological Survey in this field is well known to everyone, and the 

 pity is that our own Board of Agriculture does .so little in this 

 connection. 



The late Wells W. Cooke explains most comprehensively the 

 migration routes of many of the North American migrants, and 

 the 13 charts, with which his article is enriched, show at a glance 

 the routes taken by many species. One of the most interesting 

 of these gives the two routes taken by the two great groui)s of the 

 Palm Warbler, Dendroica palmarum palmarum, one of which winters 

 in Porto Rico and breeds in the Mackenzie basin, while the other 

 winters on the northern shores of the Gulf of Texas and breeds in 

 Labrador. There is a point on the Western boundary of Georgia 

 where these two lines of migration cross, almost at right angles, 

 both coming and going. Another chart shows the different routes 

 taken by the Connecticut Warbler on the spring and autumn 

 journeys and another the two different routes taken by the Golden 

 Plover in spring and autumn. In the autumn its non-stop flight 

 from Nova Scotia, where it leaves the mainland, to the mainland 

 of South America, some 2,500 miles, is thought to be the longest 

 regular bird journey made. 



There are far more bird sanctuaries in America than in England 

 and Mr. Kennard, in an article accompanied by numerous illustra- 

 tions, shows what can be done to attract birds even in a small way. 

 The account of what Mr. Grosvenor has achieved in this direction, 

 and which he no doubt justly looks upon as a world's record, is 

 truly remarkable. He acquired in Maryland a farm of about 100 

 ^cres, half woodland and with some rough pastures and, some time 



