Publications Reviewed. 163 



alone makes it a book in itself. Here one finds not only an intro- 

 duction to the study of birds but an introduction to the science 

 of Ornithology. The body of the book gives evidence of careful 

 revision both as to nomenclature, which has been brougiht down 

 to date, and in descriptive matter. The student of birds who 

 wishes to have at hand a work of usable size and of entire relia- 

 bility, one with which he may be certain to identify any bird 

 which may reasonably be expected to visit the eastern half of 

 North America, will make this the book of first importance for 

 his libi'ary — for, as far as a book can, it combines the local list, 

 migration dates, nesting times and distribution with that which 

 goes to make up a " Key." We are surprised that such a book 

 with eight full page colored plates and two double page colored 

 plates, not to mention the other fourteen full page plates and the 

 136 text figures, could be made for the price asked per copy. It 

 is entirely deserving of the wide sale which it has had and is 

 sure to have in this new form. l. j. 



A History of the Birds of Colorado. By William TAitley Schla- 

 ter, M.A. (Oxon.), M.B.O.U., Hon. M.A.O.U. (Lately Director of 

 the Colorado College Museum). With seventeen plates and a map. 

 Witherby & Co., 326 High Holborn, London. 1912. Published 

 price, $5. 



Twenty-four pages of prefatory matter and 576 pages, in which 

 are included a Bibliography of 20 pages, a map of Colorado, a 

 Gazetteer of 10 pages, and an Index of 14 pages. In his "Analysis 

 of the Bird Fauna," the author says : " The number of Colo- 

 rado birds included in the present work is 395. Of these 225 may 

 be considered regular breeders within the state. I have divided 

 these into three categories, viz. : (A) Those resident throughout 

 the year, 67 in number. (B) The strict migrants which, so far 

 as we know, never winter within the limits of the state, 118 in 

 number. (C) Those birds which breed within the state and in 

 winter are undoubtedly less numerous, so that they may be con- 

 sidered partly migrant and partly resident, 40 in number. 



" The non-breeding birds number 167. Of these the largest cate- 

 gory by far are the Casual or rare species, which, have only been 

 recorded on very few occasions ; these number 106. The other 

 two groups, which are not always easy to separate satisfactorily, 

 are the winter residents, numbering 28, and the birds which pass 

 through the state on the spring and fall migrations ; these are 33 

 in number." 



The body of the work beginsi with a key to the orders, then there 

 is a discussion of each order, a key to the families and genera of 



