40 The Ottawa Naturalist [May 



The author points out that the published work of Cooke is now 

 out of print and difficult to obtain. This new book, in addition 

 to the description of the birds, etc., gives keys by which the 

 birds observed, or obtained, may be determined. 



The plates are beautiful reproductions from photographs 

 taken from nature, and add much to the interest and value of 

 the volume. The printing and arrangement of the text, etc., 

 are excellent, and the author and publishers alike are to be 

 congratulated. A. G. 



In that valuable series of little books, the "Cambridge 

 Manuals of Literature and Science," there are some numbers 

 that may appeal in particular to readers of The Ottawa 

 Naturalist. The following have been added to the Carnegie 

 Library, Ottawa: 



1. "Heredity in the Light of Recent Research," by Doncaster; 

 a useful little book, giving outlines of the theories of 

 DeVries and Mendel, and of the work of Bateson. 



2. "Plant-animals," by Keeble; based on researches carried on 

 for some years in a marine laboratory in Brittany really a 

 study of the life-history and habits of two marine worms, 

 the green plant-animal and the brown plant-animal. 



3. "Prehistoric Man," by Duckworth; an account with illustra- 

 tions of various human remains of great antiquity, with 

 brief mention of theories based thereon, and an attempt to 

 arrange the primitive types in ascending order. 



4. "Links with the Past in the Plant World," by Seward; an 

 enquiry into the relative antiquity of existing plants, with 

 reference to the evidence afforded by fossils deals chiefly 

 with ferns and coniferae. 



5. "The Migration of Birds," by T. A. Coward; titles of chap- 

 ters are: Cause and Origin of Migration, Routes, Height 

 and Speed of Flight, Route Finding, Distances Travelled, 

 Perils. 



6. "Plant-life on Land," by F. O. Bower; a series of short 

 essays to illustrate the migration of plants originally 

 aquatic, to the land, and their adaption to their atmos- 

 pheric surroundings shows the point of view of the 

 present day botanist. 



7. "The Natural History of Clay," by Searle: some topics are: 

 clay and associated rocks, origins of clays, some clays of 

 commercial importance. 



8. " Earthworms and Their Allies," by Beddard. 



9. "The Coming of Evolution, "'by Judd. 



10. "The Natural History of Coal," by Arber. 





