1894. | NEW YORK ACADEMY OF SCIENCES. 207 
The plans of the proposed expedition to Patagonia, under the 
auspices of the American Museum and conducted by Mr. 
George Trotter, were set forth by the Chairman. Adjourned. 
J. F. Kemp, 
Secretary. 
StaTeD MEETING. 
May 21st, 1894. 
The Academy met with Vice-President WHITFIELD in the 
chair. Eighteen persons present. The minutes were read and 
approved. 
The Section of Geology and Mineralogy then organized. The 
first paper was the following: 
ADDITIONAL NOTE ON WOLLASTONITE FROM NEW 
YORK STATE. 
Hernricu RiIEs. 
In a previous number of these Transactions*, wollastonite 
crystals from Harrisville, N. Y., were described which showed 
four faces not hitherto recorded from this State. An examina- 
tion of the wollastonite crystals from Diana, N. Y., in the 
collections of Columbia College, and of Prof. A. H. Chester, has 
shown the following faces not figured by Penfieldt : 
A prism (probably i-15), with I , I=380°. There is a dis- 
tinct prismatic cleavage parallel to this prism, and as the meas- 
urements of the angles varied about a degree and a half, due to 
the roughness of the face, the value was calculated from the 
prismatic cleavage. This face was observed on four crystals. 
On one of these crystals are two pyramid faces evidently in 
the same zone as the prism i— ab These faces are rough, and 
*H. Ries. On some new Forms of Wollastonite from New York State. 
These Transactions, Vol. XIII, 
¢ Dana System of Mineralogy, 1892, p. 372. 
