D. APPLETON & C0,’8 PUBLICATIONS. 
Dr. H. ALLEYNE NICHOLSON’S WORKS. 
TEXT-BOOK OF ZOOLOGY, for Schools and Colleges. 12mo, 
Half roan, $1.60. 
MANUAL OF ZOOLOGY, for the Use of Students, with a Gen- 
eral Introduction to the Principles of Zodlogy. Second edition. 
Revised and enlarged, with 248 Woodcuts. 12mo. Cloth, $2.50. 
TEXT-BOOK OF GEOLOGY, for Schools and Colleges. 12mo, 
Half roan, $1.25. 
INTRODUCTION TO THE STUDY OF BIOLOGY. 
Illustrated. 12mo. Cloth, 60 cents. 
THE ANCIENT LIFE-HISTORY OF THE EARTH. 
A Comprehensive Outline of the Principles and Leading Facts of 
Paleontological Science, 12mo._ Cloth, $2.00. 
“ A work by a master in the science who understands the significance 
of every phenomenon which he records, and knows how to make it reveal 
its lessons. As eicheie its value there can scarcely exist two opinions. As 
a text-book of the historical pose of paleontology iv will be indispensable 
to students, whether specially pursuing geology or biology; and without 
it no man who aspires even to an outline Eneviedos of natural science can 
deem his library complete.”—The Quarterly Journal of Science. 
“The Professor of Natural History in the University of St. Andrews 
has, by his previous works on zodlogy and paleontology, so fully estab- 
lished his claim to be an exact thinker and a close reasoner, that scarcely 
any recommendation of ours can add to the interest with which all students 
in natural history will receive the present volume. It is, as its second titl« 
aupreneee it, a comprehensive outline of the principles and leading facts o 
paleontological science. Numerous woodcut illustrations very delicately 
executed, a copious glossary, and an admirable index, add much to th 
velue of this volume.””—Athenwum. 
New York: D. APPLETON & CO., 1, 8, & 5 Bond Street. 
