Vopr Me 
Wow I. DECEMBER, 1881. No.) 3. 
PRICE OF THE TRANSACTIONS. 
To residents of the City of New York, not members of the Academy, $5.00 
per annum. To non residents, $3.00 per annum, 4o cents per number. To resi- 
dents and honorary members, they are free; extra copies, 30 cents per number. 
TRANSACTIONS 
OF THE 
New York ACADEMY OF SCIENCES | 
| 18841-1882. 
EpITor, 
ee ALEXIS A. JULIEN, 
School of Mines, Columbia College, N. Y. City. 
PUBLISHED FOR THE ACADEMY, 
In Eight Monthly Numbers, from October to May, inclusive. 
