272 Scientific Intelligence. 



10. Standard Algebra ; by William J. Milne, New York 

 State Normal College, Albany, N. Y. Half leather, 12 mo, 464 

 pages. New York, 1908 (American Book Company). — This use- 

 ful text-book follows the method of the Inductive Algebra pub- 

 lished in 1881 by the same author. The new ideas that have been 

 brought into the teaching of elementary algebra in the interval 

 are presented, such as the remainder theorem for purposes of 

 factoring, and the graph, which is used for illustration to a limited 

 degree. It is a handy volume, bound and trimmed to carry 

 in the pocket, and the exercises are numerous, fresh and well 

 chosen. w. b. 



11. Kraft, 6ko7iomisehe, technische unci kulturgeschichtliche 

 St'iidien uber die Machtentfaltung der Staaten / von E. Reykr. 

 8°, pp. 380, many diagrams in text. Leipzig, 1908. — The work of 

 Professor Reyer, who is well known for his studies in theoretical 

 geology, has always been characterized by great originality, both 

 in his views and in his mode of presenting them. He has also 

 been widely interested in matters humanistic, and it is, there- 

 fore, not strange to find a volume coming from his pen which 

 relates to subjects outside of his especial held. 



The volume before us is a conspectus of the economic develop- 

 ment of the chief nations in matters relating to their main indus- 

 tries, those upon which their -material prosperity depends. Such 

 comprise iron and steel, coal, precious metals, manufactures,, 

 commerce on land and sea, agriculture, and a great variety of 

 others in which power is an element of first importance. The 

 history of the growth of power, its various sources of supply, its 

 relation to the topics mentioned above, and its future are thought- 

 fully treated. The book is illustrated by many diagrams and, 

 written in a clear and well-poised manner, it presents an interest- 

 ing and popular exposition of a most important subject.. 



l. v. p. 



12. International Congress of Applied Chemistry. — The seventh 

 International Congress of Applied Chemistry will be held 

 in London from May 2V to June 2. The Honorary Secretary is 

 William Macnab, address 10 Cromwell Crescent, S.W. 



The Science Year Book, with Astronomical, Physical and Chemical 

 Tables ; Summary of Progress in Science, Directory, Biographies and Diary, 

 for 1909 (fifth year). Edited by Major B. F. S. Baden-Powell. Portrait of 

 Sir William Ramsay as frontispiece. Pp. 148 + 365. London (King, Sell 

 & Olding, 27 Chancery Lane, W.C.) 



Obituary. 

 Professor Harry G. Seeley, the well-known English geolo- 

 gist and vertebrate paleontologist, died on January 8, in his 

 seventieth year. 



