ta oak as 
3 
MICROSCOPES—SURVEYING AND OTHER 
INSTRUMENTS. 
Messrs. J. & W. GRUNOW, 
OF NEW HAVEN, CONN. 
Messrs. J. & W.G. make to order Achromatic Microscopes of 
superior excellence in all respects, and of every variety of form and 
price. 
Surveying and Astronomical Instruments, 
whose superior excellence of workmanship, construction and accuracy, 
have 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 
Fibs Academy ; Profs, C. R. Gilman and A. Clark, M.D., of the Crosby 
Street Medical School, New York; Dr, H. Vanarsdale, Morristown, N. a8 
Prof. J. L. Riddell sad James Jones, M.D., New Orleans, and Dr. J. L. 
Smith, ‘Louisville, 
Priced Catalogues sent to order. (July, 1855.—tf 
rs 
G. P. PUTNAM & Co., New York. 
EXPLORING EXPEDITION REPORT ON CRUSTACEA. 
By James D. Dana. 2 vols. 4to, 1620 pages, and 96 plates in large 
folio, ate color 
OF ‘MINERALOGY. By James D. Dana. 4th edition. 
2 vols. sro, in and 
New York, 
oes ae 8. ee Ee 
FOR SALE. 
ONE COMPOUND - atenile MICROSCOPE—Grunow’s 
Tripod Stand—Three Eye- piecessa pola rizing apparatus, Compres- 
nor pad Camera, with the fohidwing ng Obpeckives' 
» 1 One- oe made by Spencer, 
; Half-in do. 
1 Eighth, made by pee 
r. to 
All in complete orde pply tox EY. 
N FREY, 
Apothecary, Bellevue Alms-House, New Yorks 
Nov. 1856.] 
