Miscellaneous Intelligence. 335 



III. Miscellaneous Scientific Intelligence. 



1. Principles of Economic Zoology ; by L. S. Daugherty and 

 M. C. Daugherty. Second edition, revised. Pp. ix, 428, with 

 301 illustrations. Philadelphia, 1917 (W. B. Saunders Co.). — 

 Emphasis is here placed on the natural history of animals, par- 

 ticularly in respect to their influence on human welfare, and 

 with only such of the structural details of the different groups 

 of animals as are necessary for the proper understanding of 

 their activities. The book contains a vast amount of interesting 

 and useful information about the common animals. 



In this new edition suggestions, problems and questions have 

 been incorporated for each chapter to guide the inexperienced 

 teacher or student toward the most important aspects of the 

 subject. w. r. c 



2. The Conduction of the Nervous Impulse; by Keith 

 Lucas, revised by E. D. Adrain. Pp. xi, 102. London and 

 New York, 1917 (Longmans, Green and Co.). — This new volume 

 in the "Monographs on Physiology," edited by Ernest H. Star- 

 ling, consists of an excellent general summary of the most recent 

 discoveries relating to the nature of the nervous impulse and its 

 method of transmission. It is mainly the work of one of the 

 most eminent investigators in this difficult branch of physiology, 

 whose life was sacrificed to his country before the completion of 

 the book, the concluding chapter being written by the reviser. 



w. r. o. 



3. A Text-oook of Mycology and Plant Pathology ; by John 

 W. Harshberger. Pp. xiii, 779, with 271 text figures. Phila- 

 delphia, 1917 (P. Blakiston's Son & Co.).— Professor Harsh, 

 berger has brought together in his book a vast amount of 

 information which will prove of service not only to the mycol- 

 ogist and pathologist but also to the general botanist. The sub- 

 ject-matter is divided into four parts and eleven appendices. 

 The first part is devoted to Mycology; the second, to General 

 Plant Pa.thology; the third, to Special Plant Pathology; and 

 the fourth, to Laboratory Exercises in Cultural Study of Fungi. 

 The appendices include a variety of subjects, such as fungicides, 

 a spray-calendar, a synopsis of the slime-moulds, and keys for 

 the determination of species in critical genera and larger groups. 

 The references to mycological and pathological publications are 

 unusually full and add much to the value of the work, while 

 the detailed directions given in the fourth part will be especially 

 helpful to teachers of the subject. a. w. e. 



4. Italian investigations in Oceanography. — At a time when 

 Italy, with the other nations of Europe, is feeling the severe 

 pressure of the world war, it is highly interesting to have the 

 publications of the Royal Italian Oceanographic Committee 



