D. APPLE T ON & CO: 8 PUBLICATIONS. 



Lockyer's Astronomy. 



AMERICAN EDITION. 



" This is by far the clearest and best manual of Astronomy WG 



have ever seen. A child may understand it and yet 



it contains information "which will be new to 



all who have not time to follow the 



latest discoveries." Kew 



York Daily Times. 



The opinion of the critic of the Times , given above, 

 is that of all who have examined this sterling school- 

 book, which is winning golden opinions everywhere. 

 Out of hosts of letters, we have space for the following 

 only : 



"Lockyer's Elements of Astronomy is a work of rare excellence. As a text-book for 

 the use of schools it is unsurpassed by any work on that subject with which I am ac- 

 quainted. 1 ' PEOF. JOIIN S. HAET, State Normal School, Trenton, N. J. 



" I think it an excellent work well calculated for class use by pupils of an academic 

 grade. The arrangement and typography are worthy of especial commendation. It is 

 a decided success." S. B. HOWE, Supt. of Scliools, Sclienectady, N. Y. 



" It is the best school-book on Astronomy that I ever saw. The spectra of the sun, 

 stars, and nebulae, are worth the price of the book. The diagrams are excellent. I 

 deem it superior to all other books on that science with which I am acquainted. Of 

 course I shall use it." "W. H. PITT, A. J/i, Princ. Friendship Academy. 



" I have examined with much satisfaction the admirable elementary treatise on As- 

 tronomy by Lockyer. It furnishes the reader with the means of learning in a short 

 tune the great features of the modern progress of Astronomy. No book (except, per- 

 haps, Youmans's New Chemistry) has appeared, which so easily, yet thoroughly, pre- 

 pares the reader for the subsequent study of that mighty auxiliary to modern science 

 spectrum-analysis. Moreover it presents, in a clear and succinct style, the relations of 

 the various parts of the stellar universe, besides inducting the learner into that neglected 

 branch of Astronomy known as Geography of the Heavens. Its illustrations are genu- 

 'ne aids to the comprehension of the. subject-matter." DAVID BEATTIE, Supt. Troy 

 (X. Y.) City Scliools. 



" I have examined it with care, and find it admirably adapted for use in schools. It 

 is so plainly written and so fully illustrated as to render it specially siu'ted for beginners 

 in the science, and, at the same time, profitable for advanced students. 1 " PEOF. C. STA- 

 LKY, Union College. 



'It is a clear and beautiful unfolding of a profound and fascinating subject. It 

 seems to me admirably adapted to the academic grade of students. Not attempting to 

 discuss those problems and theories of the science for which such pupils have neither 

 the time nor the capacity, the author has given an outline of the subject that is clear, 

 sufficiently complete, and thoroughly modern." PEOF. BEADLEY, Princ. Albany Free 

 Academy. 



