
vi ADVERTISEMENTS. 
What Two Naturalists 7 
Say pf Jh ; 
PROF. EDWARD S. MORSE. : 
I gladly avail myself of the chance of expressing my hea 
admiration for qe aa ry piep * my estimate of its 
b } 
value being p ccurate way in which f 
the genera, families, and orders of he animal kingdom are 


te: 1s ZOO 
down to the latest date. Its zoological definitions form a f 
standard reference-book for every naturalist in the j 
country. 

PROF. A. S. PACKARD. 
te A eaae The SEREY ccpomncoeeagid partly for we ro 


HEAD OF LEAF-NOSED BAT, h and also for its most excellent definitions of hee 
Siep h terms and admirable illustrations. I consider it as indispens- 
From Tue CENT "A IONARY. able both to the working and teaching scientist. 

\ z a i 
Fhe Century Dictionary. | 
S a reference-book for men who cannot afford a great library, but who need l 
A some work to which they can refer for a definition of a common word or d 
for a scientific or technical term, which can be depended upon to be at once full and A 
accurate, THE CENTURY DICTIONARY is above every other q 
It is not only a complete word Dictionary, but it is an s encyclopedia of common | 
things as well. The large number of scientific and technical words defined and the 
care that has been taken to secure absolute correctness is one of the features of the 
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tions at first hand, from men who, as specialists, are practically familiar with the 
sap and things defined. Pol Elliott Coues, M.D., Ph.D., has been in charge of 
e department of General Zoology, Biology, and Comparative Anatomy, with Prof. 
ne odore N. Gill, Edward H. Jenkins, Frank H. Knowlton, Arthur B. Seymour, 
_ Lester F..Ward, Sereno Watson, and J. D. Whitney over various other departments 
of Natural History. 
he illustrations (about 8000 in number) have been prepared by the art depart- 
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“cuts” is apparent ata glance. The Dictionary (which was begun ten Ava ago 
though it is only a little more than a year since the first volume made its 
so earnest has been the endeavor to ig the work up to date) will be sai oiet i 
six volumes of about 1200 pages 
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