D. APPLETON & CO.'S PUBLICATIONS. 
JDOPULAR ASTRONOMY. A General Description 
-* of the Heavens. By Camille Flammarion. Translated 
from the French by J. Ellard Gore, \Yith 3 Plates and 
288 Illustrations. 8vo. Cloth, §4. 50. 
"The fullest and most elaborate compendium of popular knowledge of astron* 
amy. . . . The book might reasonably be pronounced the most desirable of its kind." 
—New York Sun. 
"M. Flammarion has produced a work that charms while it interests. He has 
classified astronomy so perfectly that any person of ordinary intelligence may learn 
from his book practically all the men in the observatories know." — New York Times. 
"Flammarion talks, and his conversation is free from those technical expressions 
which make the obscure style more obscure. He treats the most abstruse problems in 
such a fashion that you see through them more clearly than you ever thought it pos- 
sible to do without years of study." — New York Herald. 
" While the translator has done excellent work, he has also added largely to the 
value of the book by his carefully prepared notes, in which he brings every astro- 
nomical theme down to date." — Chicago Inter-Ocean. 
"The book is one of extreme interest, and to our mind far surpasses in fascination 
any novel that was ever written." — London Literary World. 
/1STRONOMY WITH AN OPERA-GLASS. A 
-*-* Popular Introduction to the Study of the Starry Heavens with 
the Simplest of Optical Instruments. By Garrett P. Ser- 
viss. 8vo. Cloth, $1.50. 
" The glimpses he allows to be seen of far-stretching vistas opening out on every 
side of his modest course of observation help to fix the attention of the negligent, and 
lighten the toil of the painstaking student . . . Mr. Serviss writes with freshness and 
vivacity." — London Saturday Review. 
" By its aid thousands of people who have resigned themselves to the ignorance in 
which they were left at school, by our wretched system of teaching by the book only, 
will thank Mr. Serviss for the suggestions he has so well carried out." — New York 
Times. 
"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. 
" Mr. Garrett P. Serviss's book, 'Astronomy with an Opera-Glass,' offers us an 
admirable handbook and guide in the cultivation of this noble aesthetic discipline (the 
study of the stars)." — New York Home Journal. 
" The book should belong to every family library." — Boston Home Journal. 
New York : D. APPLETON & CO., 72 Fifth Avenue. 
