308 Scientific Intelligence. 



conventional emblems of ancient and modern peoples, while the 

 other discuss species and hybridization, cross-breeding of races, 

 and curious forms of animal life. The book is of real value not 

 only because of the pleasure and inspiration which the reading 

 of the essays will give, but also because the information contained 

 in them has been subjected to the judicial consideration of one 

 whose wide knowledge and experience enables him to set forth 

 the various phases of the subjects in their true proportions. 



w. R. c. 



3. Observations on the Living Gastropods of New England; 

 by Edward S. Morse. Pp. 1-29 ; plates 1-9. Peabody Museum. 

 Salem, Mass., 1921. — In spite of the fact that the shells of so 

 many of our mollusks were described a half century or more ago, 

 but little information is as yet available as to the structure and 

 habits of the animals themselves. The observations on the nat- 

 ural history of the species recorded in this paper and especially 

 the life-like drawings of the living animals will therefore be 

 warmly welcomed. They supplement a similar study of the 

 lamellibranchs published a couple of years ago. (See this Jour- 

 nal, 48, 477.) The author also touches a responsive chord in his 

 continued vigorous protest against such needless multiplication 

 of generic names as has been in vogue in recent years, w. R. c. 



4. Elements of Bond Investment ; by A. M. Sakolski. Pp. 

 158. New York, 1921 (The Ronald Press Company).— In ^'Ele-- 

 ments of Bond Investment" Mr. Sakolski has covered in a small 

 volume, easily carried in pocket, a range of topics of remarkable 

 extent. All bear upon the subject of the work, but can only sug- 

 gest the complexity of the factors that go to advise the reader just 

 what are these elements of bond investment. The book describes 

 clearly what a bond is and that is a question probably nine men 

 out of ten could not answer. Everyone has an idea as to what a 

 bond is, until he is asked to tell you and then he usually weakens. 

 The book is valuable as a text book to the entirely ignorant ; it 

 can be read profitably by the man who has a hazy idea about 

 bonds and investment ; and going still farther, the book is full of 

 orderly information that even the expert investor can cull facts 

 from. It is the work of a practical bond man, not a theorist. 



Of course to read this book is not to become a competent inves- 

 tor. Men specialize in different kinds of bonds : Government, 

 State, County, Municipal, Railroad, Public Utility and Indus- 

 trial, each with a literature of its own and full of complications. 

 And so the wise investor, be he in some business outside of broker- 

 age, must still advise with the experts before he can safely risk 

 his money. But with ''Elements of Bond Investment" in the 

 back of his head, he is forewarned and, therefore, forearmed. The 

 book is readable and covers a large subject with skill and good 

 sound level-headedness. Dean B. Lyman. 



