BOOKS BY GARRETT R SERVISS* 



Other Worlds. 



Their Nature, Possibilities, and Habitability in the Light of 

 the Latest Discoveries. Illustrated. i2mo. Cloth, $1.20 

 net; postage, 11 cents additional. 



This book presents the very latest conclusions in regard 

 to the nature and the habitability of the other planets. It is 

 written in popular style, and, at the same time, is scientifically 

 accurate in its statements. It is a convenient handbook uf 

 information concerning the solar system, but by no means a 

 dry, scientific treatise on the subject. It might be said to re- 

 semble Proctor's celebrated "Other Worlds than Ours" 

 brought up to date. The last chapter, on " How to Find the 

 Planets," is unique and should prove very useful. 



Pleasures of the Telescope. 



A Descriptive Guide for Amateur Astronomers and all Lovers of 

 the Stars. Illustrated with charts of the heavens and with draw- 

 ings of the planets and charts of the moon. 8vo. Cloth, $1.50. 



" This is a book which will give intense pleasure to everyone who 

 uses it and follows its clear instructions." — Louisville Courier- 

 Journal. 



•• Every person of culture should possess at least a passing ac- 

 quaintance with the planets, stars, and constellations. With a little 

 patience and comparatively small effort Mr. Serviss's new book will 

 enable anyone to obtain this knowledge." — Los Angeles Herald. 



Astronomy with an Opera-Glass. 



A Popular Introduction to the Study of the Starry Heavens 

 with the Simplest of Optical Instruments. 8vo. Cloth, $1.50. 



" We are glad to welcome this popular introduction to the study 

 of the heavens. . . . There could hardly be a more pleasant road 

 to astronomical knowledge than it affords. ... A child may 

 understand the text, which reads more like a collection of anecdotes 

 than anything else, but this does not mar its scientific value. ^''-Nature, 



D. APPLETON AND COMPANY, NEW YORK. 



