D. APPLETON & 00,'S PUBLICATIONS. 



EXPERIMENTAL SCIENCE SERIES. 



LIGHT* A Series of Simple, Entertaining, and Interesting Experi- 

 ments in the Phenomena of Light, for Students of every Age. By 

 ALFRED MARSHALL MAYER, Professor of Physics in the Stevens In- 

 stitute of Technology, etc., and CHARLES BARNARD. Illustrated. 

 12mo, cloth. $1.00. 



"Professor Mayer has invented a series of experiments in Light which are 

 described by Mr. Barnard. Nothing is more necessary for sound teaching than 

 experiments made by the pupil, and this book, by considering the difficulty of 

 costly apparatus, has rendered an important service to teacher and student alike. 

 It deals with the sources of light, reflection, refraction, and decomposition of 

 light. The experiments are extremely simple and well suited to young people." 

 Westminster Review. 



" A singularly excellent little hand-book for the use of teachers, parents, and 

 children. TThe book is admirable both in design and execution. The experi- 

 ments for which it provides are so simple that an intelligent boy or girl can 

 easily make them, and so beautiful and interesting that even the youngest chil- 

 dren must enjoy the exhibition. The experiments here described are abundantly 

 worth all that they cost in money and time in any family where there are boys 

 and girls to be entertained." ./V<?tt> York Evening Post. 



"The experiments are for the most part new. and have the merit of combin- 

 ing precision in the methods with extreme simplicity and elegance of design. 

 The aim of the authors has been to make their readers k experimenters, strict 

 reasoners, and exact observers,' and for the attainment of this end the book is 

 admirably adapted. Its value is further enhanced by the numerous carefully- 

 drawn cuts, which add greatly to its beauty." The American Journal of Science 

 and Art. 



SOUND. A Series of Simple, Entertaining, and Inexpensive Experi- 

 ments in the Phenomena of Sound, for Students of every Age. By 

 ALFRED MARSHALL MAYER. Illustrated. 12mo, cloth. $1.00. 



41 It would be difficult to find a better example of a series which is excellent 

 throughout. Thin little work is accurate in detail, popular in style, and lucid in 

 arrangement. Every statement is accompanied with ample illustrations. We 

 can heartily recommend it, either as an introduction to the subject or as a satis- 

 factory manual for those who have no time for perusing a larger work. It con- 

 tains an excellent description, with diagrams, of Faber's Talking Machine and 

 of Edison's Talking Phonograph, which can not fail to be interesting to any 

 reader who takes an interest in the marvelous progress of natural science." 

 British Quarterly. 



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

 mate adaptation to its modest end, of this little treatise on ' Sound.' It teaches 

 the youthful student how to make experiments for himself, without the help of 

 a trained operator, and at very little expense. These hand-books of Professor 

 Mayer should be in the hands of every teacher of the young." New York Sun. 



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

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

 and placed in progressive order." Boston Courier. 



New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. 



