330 NATURE-STUDY REVIEW [10:8— Nov., 1914 



Anyone familiar with the work of the author will anticipate that 

 the writings are true to nature and that the style is both interesting 

 and simple. The language used will put the books into the upper 

 grades, although as suggestive material the teacher even of inter- 

 mediate grades could make good use of the books. The subject 

 matter covers principally the lives of the birds and the smaller 

 mammals, although there is more or less space devoted to plants 

 and the other animals. The illustrations are by Robert Bruce 

 Horsfall and are pen and ink sketches or black and white wash 

 drawings. They add materially to the value of the books. 



Frog Culture for Profit. The Aqua Life Co., Seymour, Conn. 

 $2.oo. 

 This book contains only twenty-five pages of print, well spaced 

 and provided with wide margins at that, only about 6ooo words 

 and yet it is priced as if it were a generous book. We presume the 

 author, whose name by the way is not given, conceives that the 

 information he gives is worth the price even if it does occupy little 

 room. And that might be true if one were contemplating starting 

 a frog pond. [This is immensely profitable, according to the 

 booklet.] Still about all the information is readily obtained from 

 the government bulletins, such as ''Notes on the Edible Frogs of 

 the United States and their Artificial Propagation," by F. M. 

 Chamberlain, U. S. Fish Commission Reprint 348, or the Bi- 

 Monthly Bulletin of the Division of Zoology, Pennsylvania 

 Department of Agriculture, Vol. Ill, Nos. 3 and 4. "The Amphi- 

 bians of Pennsylvania," and these are free publications. There 

 seems to be no excuse for the little volume except to make large 

 earnings on a meager investment for said Seymour Co. , depending 

 on the gullibility of an unsuspecting public for the sales. 



Learning and Doing. Edgar James Swift, pp. x + 249. The 

 Bobbs-Merrill Co., Indianapolis. $1.00. 

 Education is coming to be a science. We actually begin to know 

 some things in the educational field with a fair degree of certainty. 

 Whereas formerly personal opinion of methods and processes in 

 learning were based on limited experience, now facts resulting from 

 careful scientific experiments afford foundation for our procedure. 

 This book puts at the disposal of the teacher much of the new 

 information and incorporates it in a forceful statement of the 



