4- TEXT-BOOKS OF SCIENCE 



PHT8IC8 



AMES'S THEORY OF PHYSICS 

 Theory of Physics. By Joseph S. Ames, Ph.D., Asso- 

 ciate Professor of Physics in Johns Hopkins University. 

 Crown 8vo, Cloth, II 60; by mail, $1 75. 



Perhaps the best general introductiou to physics ever printed in 

 the English language. ... A model of comprehensivene'is, direct- 

 ness, arrangement, and clearness of expression. . . Tiie tieuiment 

 of each subject is wonderfully up to dale for a text-book, nnd does 

 credit to the system which keeps Johns Hopkins abreast of the limes. 

 Merely as an example of lucid expression and of systematization, the 

 book is worthy of careful reading. — N. T. Press. 



Seems to me to be thoroughly scientific in its treatment and to 

 give the student what is conspicuously absent in certain well-known 

 text-books on the subject — an excellent perspective of the very ex- 

 tensive phenomena of physics. — Professor F. E. Beach, Sheffield 

 Scientific School of Tale University. 



AMES'S MANUAL OF EXPERIMENTS IN PHYS- 

 ICS 



A Manual of Experiments in Physics : Laboratory In- 

 struction for College Classes. By Joseph S. Ames, 

 Ph.D., Associate Professor of Physics in Johns Hop- 

 kins University, author of "Theory of Physics," and 

 William J. A. Bliss, Associate in Physics in Johns 

 Hopkins University. 8vo, Cloth, %l 80 ; by mail, $2 00. 



This is a thoroughly practical and helpful volume, viewing its 

 subject from a modern stand-point, and designed to offer the most 

 approved methods of demonstration. 



The work contains nearly 100 experiments, which are divided into 

 six sections : Preliminary Experiments, Mechanics and Properties of 

 Matter, Sound, Heat, Electricity and Magnetism, and Light ; Ap- 

 pendix, Tables. 



At the end of the experiments proper, in the Appendix, there are 

 three supplementary chapters devoted to general laboratory methods 

 and processes, to the discussion of laboratory equipment, and to the 

 construction and selection of galvanometers. 



HOOKER'S NATURAL PHILOSOPHY 



Natural Philosophy. By Wokthington Hookeb, M.D. 

 pp. 434. Numerous Illustrations. New Edition. 12mo, 

 Half Leather, 90 cents ; by mail, $1 00. 



'Phis work is designed for the use of the older scholars in gram- 

 mar-schools, and at the same time is suited to those advanced to a 

 higher grade who have not gone through the previous books of the 

 series. 



