94 



NATURAL SCIENCE. 



suited to the grades that will use the book. The experiments are 

 varied, interesting, clear, and of practical significance, as well as 

 simple in manipulation and ample in number. Certain subjects 

 that are justly considered difficult and obscure have been omitted ; 

 as, for instance, certain laws relating to the pressure of gases and 

 the polarization of light. The Introduction is even more fully 

 illustrated than the Elements. 



In General. The Introduction, like the Elements, has this distinct 

 and distinctive aim, to elucidate science, instead of "populariz- 

 ing " it ; to make it liked for its own sake, rather than for its gilding 

 and coating ; and, while teaching the facts, to impart the spirit of 

 science, that is to say, the spirit of our civilization and progress. 



George E. (Jay, Prin. of High 

 School, Maiden, Mass.: With the 

 matter, both the topics and their pre- 

 sentation, I am better pleased than 

 with any other Physics I have seen. 



E. H. Perkins, Supt. of Schools, 

 Chicopee, Mass. : I have no doubt 

 we can adopt it as early as next 

 month, and use the same to great ad- 

 vantage in our schools. (Feb. 6, 1888.) 



Mary E. Hill, Teacher of Physics, 

 Northfield Seminary, Mass. : I like 

 the truly scientific method and the 

 clearness with which the subject is 

 presented. It seems to me admirably 

 adapted to the grade of work for 

 which it is designed. (Mar. 5, '88.) 



JohnPickard, Prin. of Portsmouth 

 High School, N.H. : I like it exceed- 

 ingly. It is clear, straightforward, 

 practical, and not too heavy. 



Ezra Brainerd, Pres. and Prof, 

 of Physics, Middlebury College, Vt. : 

 I have looked it over carefully, and 

 regard it as a much better book for 

 high schools than the former work. 

 (Feb. 6, 1888.) 



James A. De Boer, Prin. of High 

 School, Montpelier, Vt. : I have not 

 only examined, but studied it, and 

 consider it superior as a text-book to 

 any other I have seen. (Feb. 10, '88.) 



E. B. Eosa, Teacher of Physics, 

 English and Classical School, Provi- 

 dence, JKJ. : I think it the best thing 

 in that grade published, and intend 

 to use it another year. (Feb. 23, '88.) 



G. H. Patterson, Prin. and Prof, of 

 Physics, Berkeley Sch., Providence, 

 K.I.: A very practical book by a 

 practical teacher. (Feb. 2, 1888.) 



George E. Beers, Prin. of Evening 

 High School, Bridgeport, Conn. : 

 The more I see of Professor Gage's 

 books, the better I like them. They 

 are popular, and at the same time 

 scientific, plain and simple, full and 

 complete. (Feb. 18, 1888.) 



Arthur B. Chaff ee, Prof, in Frank- 

 lin College, Ind. : I am very much 

 pleased with the new book. It will 

 suit the average class better than the 

 old edition. 



W. D. Kerlin, Supt. of Public 

 Schools, New Castle, Ind.: I find 

 that it is the best adapted to the 

 work which we wish to do in our 

 high school of any book brought to 

 my notice. 



C. A. Bryant, Supt. of Schools, 

 Paris, Tex. : It is just the book for 

 high schook. I shall use it next 

 year. 



