THE EXPERIMENTAL SCIENCE SERIES. 



SOUND: 



A Series of Sim pUy Entertaining, mid Inexpensive Experiments in the 

 Phenomena of Sound, for the Use of Students of Every Age. 



By ALFRED MARSHALL MAYER, 



Professor of Physics in the Stevens Institute of Technology; Member of the 

 National Academy of Sciencep, etc. 



UNIFORM "WITn "light," FIRST VOLUME OP THE SERIES. 



Neat 12mo volume, bound in cloth, fully illustrated. Price, $1.00. 



" It "Would really be difficult to exaggerate the merit, in the sense of consum- 

 mate adaptation to its modest end, of the little treatise on ' Sound' which forms 

 the second number of Appletons"* 'Experimental Science Series.' The purpose 

 of these hand-books is to teach the youthful student how to make experiments 

 for himself, without the help of a trained operator, and at very little expense. 

 How successful the authors were in attaining that end is attested by the remark- 

 able and constantly-increasing demand for the initial volume. These hand-books 

 of Professor Mayer should be in the hands of every teacher of the young."— iVew 

 York Sun. 



" The present work is an admirably clear and interesting collection of experi- 

 ments, described with just the right amount of abstract information and no more, 

 and placed in progressive order. The recent inventions of the phonograph and 

 microphone lend an extraordinary interest to this whole field of experiment, 

 which makes Professor Mayer's manual especially opportune." — Boston Courie?: 



" Br. Mayer has written a second beautiful book of experimental science, the 

 subject being ' Sound.' It is a little volume, is surprisingly comprehensive, and, 

 although intended for beginners, contains many pages that will be read with 

 pleasure by those most familiar with the subject."—^. T. Independent. 



" •■ Sound ' is the second volume of the ' Experimental Science Series.' Like 

 its predecessor, it is deserving of hearty commendation for the number of inge- 

 nious and novel experiments by which the scientific principles are illustrated. 

 These little volumes are the best manuals ever written for the use of non-scien- 

 tific students, and their study will more than repay the labor devoted to them.*' 

 —Boston Gazette. 



" An interesting little treatise on ' Sound.' A carefully-prepared price-list of 

 articles needed for tests and experiments adds to the value of the volume."— 

 Boston Evening Transcript. 



D. APPLETON & CO., Publishers, 549 & 551 Broadway, N. Y. 



