3 
_MICROSCOPES—SURVEYING AND OTHER 
ioe INSTRUMENTS. 
Mgssrs. J. & W. GRUNOW, 
OF NEW HAVEN, CONN. 
Messrs. J. & W.G. make to order Acnromatic Microscopes of 
Superior excellence in all respects, and of every variety of form and 
ice.—ALso— 
Surveying and Astronomical Instruments, 
whose superior excellence of workmanship, construction and accuracy, 
lave been frequently acknowledged. 
For the quality of their instruments, Messrs. J. & W. G. are per- 
mitted to refer to the Editors of this Journal. To Profs. D. Olmsted 
and W.™A. Norton of Yale College; Prof. W. Gibbs of New York 
. ci x 
Priced Catalogues sent to order. (July, 1855.—tf 
te Mgetatae SOM 
MINERALS AND FOSSILS. 
Tux undersigned would respectfully call the attention of the scientific 
and lovers of Minrratocican and Fossit Specimens to his Collection, 
Consisting in a great variety of both, all of which he offers for sale at 
exceedingly low rates. 
aving been an extensive Mineralogist for upwards of twenty-five 
years in his native country (Germany) (Prussia), he flatters himself to 
be able to produce Specimens of rare interest, to all lovers of the study. 
With satisfactory references, would be willing to send samples to 
ee = of the United States. Expenses of att ie ahs rif 
¥ those requiri les, which [ can send in cases fi 
lars up, ne Samples, WHE. W. A. HERRMANN, 
May, 1855.—1y] No. 1007 B 
ws 
Broarway, New York. — 
