TEXT-BOOKS ON ASTRONOMY 



REVISED EDITIONS 



By CHARLES A. YOUNG, 



Professor of Astronomy in Princetott University, Princeton, N. J., 

 and Author of "The Sun." 



Lessons in Astronomy. Including Uranography. Revised Edition. 

 i2mo. Cloth. Illustrated. 366 pages, and four double-page star 

 maps. For introduction, $1.20. 



Elements of Astronomy. With a Uranography. Revised Edition. 

 i2mo. Half leather. 464 + 42 pages, and four double-page star 

 maps. For introduction, $1.60. 

 Uranogfrapliy. From the Elements of Astronomy. Flexible covers. 42 pages, 

 and four double-page star maps. For introduction, 30 cents. 



General Astronomy. Revised Edition. A text-book for colleges 

 and scientific schools. 8vo. 630 pages. Half morocco. Illustrated 

 with 250 cuts and diagrams, and supplemented with the necessary 

 tables. For introduction, $2.75. 



A Series of text-books on astronomy for higher schools, 

 academies, and colleges. Prepared by one of the most dis- 

 tinguished astronomers of the world, a most popular lecturer, 

 and a most successful teacher. 



The Lessons in Astronomy was prepared for schools that 

 desire a brief course free from mathematics. The book has 

 just been revised and brought fully up to date. Great pains 

 has been taken not to sacrifice accuracy and truth to brevity, 

 and no less to bring everything thoroughly up to the present 

 time. 



The Elements of Astronomy is a text-book for advanced high 

 schools, seminaries, and brief courses in colleges generally. 

 Special attention has been paid to making all statements 

 correct and accurate. 



The eminence of Professor Young as an original investi- 

 gator in astronomy, a lecturer and writer on the subject, 

 and an instructor in college classes, led the publishers to 

 present the General Astronomy with the highest confidence ; 

 and this confidence has been fully justified by the event. 

 It is conceded to be the best astronomical text-book of its 

 grade. The present edition has just been thoroughly revised 

 and enlarged. 



GINN & COMPANY, Publishers, 



Boston. New York. Chicago. Atlanta. Dallas. 



