Dollar Books 



Authoritative glances at science, of absorbing interest. The 

 price of each book is one dollar. 



NATURE NARRATIVES— By Austin H. Clark, author of 

 The New Evolution. Fifty tales of the wonders of living forms on 

 land and sea, culled from the author's wide field experience in 

 m.any parts of the world. Art Boards. 



THE BEAVER— By Edward R. Warren. A thoroughly reli- 

 able and comprehensive account of the beaver's works and 

 ways wherever he may be found. Very amply illustrated with 

 half tones and with diagrams illustrating dams and lodges. Cloth. 



ANIMAL LIFE IN THE CARLSBAD CAVERN— By Ver- 

 non Bailey. An entertaining description of the fauna in the 

 fascinating region of our largest and most lately opened natural 

 cave. Amply illustrated. Cloth. This book, with The Beaver 

 (above) was sponsored by the American Society of Mammal ogists. 



ANIMAL AUTOBIOGRAPHIES— By Edward Huntington 

 Williams. Real information about the habits and habitat of 

 the crow, the woodchuck, the jackrabbit, the flying squirrel, cast 

 into a delightful story form. Cloth. 



RESEARCH NARRATIVES— Compiled by Alfred Flinn 

 of Engineering Foundation. Three volumes of 50 five-minute 

 stories each, of invention discovery and research told by the 

 "m.en who did it." Cloth (Each volume is $1.00). 



The Williams & Wilkins Company 



Publishers of Scientific Books and Periodicals 

 BALTIMORE, U. S. A. 



