190 KANSAS CITY REVIEW OF SCIENCE. 



expressed in the closing paragraph as follows, where the author says : That the 

 Gulf Stream and Kur-Siwo are the prime and only cause of the open sea about 

 the Pole, with its temperature so much above that due to the latitude ; that the 

 only practical avenues by which ships can reach that sea, and thence to the Pole, 

 is by following the warm waters of these streams into that sea ; that to find and 

 follow these streams, the water thermometer is the only guide, and that for this 

 reason they may be justly termed the " Thermometric Gateways to the Pole." 



Worms and Crustacea. By Alpheus Hyatt; pp. 68. Ginn, Heath & Co., 



Boston, Mass , 1882. 



This is one of the publications of the Boston Society of Natural History de- 

 signed to supplement lectures given to teachers of the public schools of Boston, 



This is the eighth number of a series of ten publications or pamphlets on 

 scientific studies designed for teachers. Besides simple illustrations and instruc- 

 tions as to the modes of presentation and study, there are, in each pamphlet, 

 hints which will be found useful in preserving, preparing, collecting and purchas- 

 ing specimens. These publications ought to be in the hands of every teacher 

 who loves nature, and if one does not love and study nature, is he fit to teach ? 



Wanderings in South America. By Charles Waterton, 8vo. pp. 64. Mac- 

 Miilan & Co., London, 1882. 



In this publication we have the wanderings of a naturalist in South America, 

 the northwest of the United States and the Antilles, in the years 1812, 1816, 1820 

 and 1824 with original instructions for the preservation of birds, etc , for cabinets 

 of natural history. 



There is a biography of the author by the Rev. J. G. Wood, and an explana- 

 tory index by the same. This publication is chiefly valuable as a work of history. 

 In the last fifty years there has been much progress in natural science. The 

 narrative is quite interesting to the reader. 



Proceedings of the Academy of Natural Sciences of Philadelphia. Part 

 I, January to April, 1882. 8vo. pp. 104. 



This publication contains fifty-six papers, illustrated by several charts. The 

 papers are thoroughly scientific in character and very valuable. 



Horses' Teeth. By William H. Clarke. i2mo. pp. 262 ; New York, 1880. $1. 

 This is a treatise upon the teeth of horses, their mode of development, phy- 

 siological relations, anatomy, microscopical character and pathology, made up 

 from the works of Profs. Owen, Huxley, John Hunter, Dungiison, Youatt, Chau- 



