TEXT-BOOKS ON ASTRONOMY 



By CHARLES A. YOUNG 



Professor of Astronomy, in Princeton University 



Lessons in Astronomy. (Revised Edition) Including Star Maps. 

 420 pages. Illustrated. List price, #1.25; mailing price, $1.40. 



Elements of Astronomy. With a Uranography. 464 + 42 pages 

 and four double-page star maps. List price, $1.60; mailing 

 price, $1.75. 



Vranography. From the " Elements of Astronomy." Flexible covers. 42 pages 

 and four double-page star maps. List price, 30 cents; mailing price, 35 cents. 



Manual of Astronomy. 611 pages. Illustrated. List price, 

 $2.25 ; mailing price, $2.45. 



General Astronomy. A text-book for colleges and scientific 

 schools. 630 pages. Illustrated with 250 cuts and diagrams 

 and supplemented with the necessary tables. List price, $2.75 ; 

 mailing price, $3.00. 



A SERIES of text-books on astronomy for higher schools, acad- 

 emies, and colleges, prepared by one of the most distinguished 

 astronomers of the world, a popular lecturer and a successful 

 teacher. 



The Lessons in Astronomy was prepared for schools that desire 

 a brief course free from mathematics. The book is fully down 

 to date, and several beautiful plates of astronomical objects and 

 instruments have been inserted in the revised edition. 



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 accurate. 



The Manual of Astronomy is a new work prepared in response 

 to a pressing demand for a class-room text-book intermediate 

 between the author's " General Astronomy " and his Elements of 

 Astronomy." It is largely made up of material drawn from the 

 earlier books, but rearranged, rewritten when necessary, and 

 added to in order to suit it to its purpose and to bring it thor- 

 oughly down to date. 



The eminence of Professor Young as an original investigator 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. 



GINN 6 COMPANY Publishers 



