Chemistry and Physics. 396 



7. Volumetric Analysis, by Francis Sutton. Tenth edition. 

 8vo, pp. 621. Philadelphia, 1911 (P. Blakiston's Son & Co.).— 

 This work, being one of the best-known and most valued hand- 

 books of analytical chemistry, requires no comments except in 

 regard to the appearance of a new edition. The author states 

 that at the age of fourscore he has found himself less and less 

 equal to the task of revision, but is looking forward already to 

 the appearance of a Jubilee edition, when 50 years shall have 

 elapsed since the first appearance of his work in 1863. The 

 preparation of the present edition has been placed in the hands 

 of the author's son, \V. Lincoln Sutton, and of Alfred E. Johnson. 

 The revision appears to have been very thoroughly and well done. 

 A good deal of obsolete matter has been deleted, the subject mat- 

 ter has been well brought up to date, and many other improve- 

 ments have been made in the book. h. l. w. 



8. Principles of Physics; by W. F. Magie. Pp. ix, 570; 

 281 figures. New York, 1911 (The Century Co.). — The novelty 

 of this book consists chiefly in the exposition of the subject 

 according to its historical development. In his preface, the 

 author says :— "The use of the historical outline accounts for 

 what is nowadays the unusual order followed in the presentation 

 of some of the subjects." " It leads to a much fuller discussion 

 of statics than is generally given, and to other peculiar features 

 of the treatment, such as the use of the statical measure of force, 

 the belated introduction of the relations of heat to energy, the 

 use of the method of rays in geometrical optics, and to other 

 minor divergences from common practice." 



The principles discussed are clearly illustrated by examples 

 which are completely solved and which are collected in groups at 

 appropriate intervals. When the formal demonstration of a 

 theorem is of much less importance to the student than the 

 theorem itself, the proof is given in fine print. The figures are 

 clear, line diagrams. The calculus is not used, but a thorough 

 knowledge of plane trigonometry is presupposed. The work is up 

 to date and relatively complete, as may be inferred from the fact 

 that such subjects as Brownian movements, pressure of light, dis- 

 charge of electricity through gases, radioactivity, etc., are 

 presented. The text proper is followed by a list of 254 examples 

 with their numerical answers and also by tables of physical con- 

 stants. 



Since this book differs so markedly from the majority of recent 

 texts of the same degree of advancement, it is a matter of import- 

 ance pedagogically to observe what success the text meets with 

 in the hands of teachers other than the author. Also, the 

 volume should be of much assistance to many instructors them- 

 selves because the point of view of the author is especially con- 

 ducive to acquiring a good perspective of the entire field. 



H. S. TJ. 



9. Direct and Alternating Current Manual, Second Edition, 

 with Directions for Testing and a Discussion of the Theory of 



