2 
: NORTON’S ; 
LIBRARY AND IMPORTING AGENCY, 
5 CLINTON HALL ASTOR PLACE, 
NEW YORK. 
THE subscriber would invite the attention of 
LIBRARIANS, CLERGYMEN, STUDENTS AND BOOKBUYERS GENERALLY, 
to his facilities for supplying BOOKS at low prices. Through his 
Agents in London, aris, Berlin and Amsterdam, he is enabled to 
supart either in quantities or by the single volume on the very best 
rms. Particular attention paid to orders from Colleges and Public 
oe sage Catalogues furnished gratuitously. 
CHARLES B. prprr: 
~ Sept. 1855.] athe ‘Libraries. 
MICROSCOPES—SURVEYING AND OTHER 
INSTRUMENTS. 
Messrs. JULIUS & WILLIAM GRUNOW, y 
OF NEW HAVEN, CONN. 
Pa , 
Messrs. J. & W. G. make to order Acnromatic Microscopes of 
superior excellence in all respects, and of every variety of form an 
price. —ALso— 
Surveying and * dsthihbieicls Instruments, 
whose superior excellence of ner carga construction and accuracy, 
have eee: frequently acknowledge 
For quality of their instrume ents, Messrs. J. & W. G. are per- 
mitted ~ refer to the Editors of this Journal. To Profs. D. 
and . Norton of Yale College; Prof. W. Gibbs of New York 
Free Aca ademy ; Profs. C. R. Gilman and A. Clark, M.D., of the Crosby 
Street ee el, New York; Dr. H. Vanarsdale, Morristown, N.J.; 
Prof. J. L. Riddell and James 5 M.D., New Orleans, and Dr. J. L- 
Smith, 5 PRA GG Ky. 
ed Catalogues sent to order. (July, 1855—tf 
