436 Scientific Intelligence. 



important contribution to our knowledge of the subject, and 

 reflects much honor upon its authors. The execution of the me- 

 chanical part of the volume by the publishers leaves nothing to 

 be desired. 



13. Die physikalische Pehandlung and die Messung holier 

 Temperaturen, von Carl Barus. 92 pp. 8vo. Leipzig, 1892. 

 (John Ambrosius Barth-Arthur Meiner). — Dr. Barus has had 

 rare experience in the measurements of high temperatures, and 

 hence this general discussion of the subject, which is not only- 

 historical but also practical as based upon his own extended ob- 

 servations, is of very high value. The method to which he 

 gives the preference in pyrometry is the use of the thermo-element 

 of the platinum metals, the application of which he discusses with 

 admirable fulness. 



14. HiXlfsbuch fur die Ausfuhrung elektrischer Messungen, von 

 Dr. Ad. Heydweiller. 262 pp. 8vo. Leipzig, 1892. (Johann 

 Ambrosius Barth-Arthur Meiner). — Brief descriptions are given 

 in this volume of the various methods of electrical measure- 

 ments, particularly those which have been introduced during 

 the last decade or two. They include the measurements of 

 current-strength, of resistance, capacity, and so on. Some of 

 the most important numerical results obtained are given in the 

 series of twenty tables at the end, and these ai'e preceded by an 

 extended index of authors and papers. The book brings together 

 much valuable matter only to be found otherwise scattered through 

 recent periodical literature. 



15. Practical Physics • by R. T. Glazebrook and W. N. Shaw. 

 Fourth edition, revised. 633 pp. 12mo. London and New York, 

 1893. (Longmans, Green & Co.). — The excellent volume on 

 " Practical Physics" by Glazebrook and Shaw is too well known 

 and widely appreciated to need commendation here. It has 

 done valuable service in many physical laboratories for nearly 

 ten years. The fourth edition now issued contains some impor- 

 tant additions and changes, called out particularly by the experi- 

 ence of the authors at the Cavendish Laboratory. 



16. Elementary Treatise on Physics, Experimental and Ap- 

 plied, for the use of Colleges and Schools. Translated and edited 

 from Ganot's Elements de Physique (with the author's sanction); 

 by E. Atkinson. Fourteenth edition, revised and enlarged. 

 Illustrated by 9 colored plates and maps and 1028 woodcuts. 

 1115 pp. New York, 1893. (William Wood & Co.).— Thirty 

 years have passed since the first English translation of Ganot's 

 Physics, and in this time no less than fourteen editions have been 

 given to the public. Perhaps no other general text book has 

 played so important a part in the education of students in this 

 branch of science. While appreciating its many excellent fea- 

 tures, it is impossible not to wish that the English editor might 

 attempt an entire re-construction of the work, so as to make 

 it homogeneous throughout, and in accordance with the methods 

 of the Physics of to-day. 



