LIGHT 



A SERIES OF SIMPLE, ENTERTAINING, AND INEXPENSIVE EX- 



PERIMENTS IN THE PHENOMENA OF LIGHT, FOR THE 



USE OF STUDENTS OF EVERY AGE. 



By ALFKED M. MAYER and OHAELES BAR2TAKD. 



Price, $1.00. 



From the New York Evening Post. 

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

 dren. The book is admirable both in design and execution. The experiments 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 children must enjoy the exhibition, 

 while the whole cost of all the apparatus needed is only $12.40. 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." 



From the New York Scientific A merican. 

 "The experiments are capitally selected, and equally as well described. The book 

 is conspicuously free from the multiplicity of confusing directions with which works of 

 the kind too often abound. There is an abundance of excellent illustrations." 



From the A merican Journal 0/ Science and A rts. 



"The experiments are for the most part new, and have the merit of combining pre- 

 cision in the methods with extreme simplicity and elegance of design. The aim of the 

 authors has been to make their readers ' experimenters, strict reasoners, and exact ob- 

 servers,' 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." 



From the Boston Globe. 



"The volume seems well adapted to the needs of students who like to have their 

 knowledge vitalized by experiment. The fact that nearly all the experiments described 

 are new, and have been tested, is an additional recommendation of this handy volume. 

 The illustrations add to its interest and value, and its simplicity, both of design and 

 execution, will commend it to beginners and others seeking information on the subject." 



From the Philadelphia Press. 

 "It supplies a large number of simple and entertaining experiments on the phe- 

 nomena of light, that any one can perform with materials that maybe found in any 

 dwelling-house, or that maybe bought for a small sum in any town or city. This 

 actually is philosophy in sport, which thoughtful or ready minds can easily convert 

 into science in earnest." 



D. APPLETON & CO., 549 & 551 Broadway, New York. 



