64 TRANSACTIONS OF THE [DEC. 38, 
so-called serpentine associated with the red hematites at 
Antwerp, N. Y.” In a different form this paper will be found 
in the Journal of Geology IT., 667. 
The last paper of the evening was read by J. F. Kemp, ‘‘ The 
Geological Section exhibited by the new tunnel under the Hast 
River, at T0th Street.” The paper is printed later on in this 
volume. 
Mr. G. F. Kunz exhibited to the Academy reproductions of 
rock sections in polarized light from photographs taken through 
color screens by Kurtz, of New York. By cutting off the com- 
plementary colors of red, green, and blue, and then printing 
from the negatives with inks of these colors, remarkably accurate 
reproductions are attained. 
The Academy then adjourned. 
J. F. Kemp, 
Recording Secretary of Section and Academy. 
STATED MEETING. 
November 26th, 1894. 
The Academy met and listened to the second public lecture of 
the course for 1894-95, by Prof. R. 8. Woodward, entitled ‘ An 
Historical Sketch of the Development of the Science of Me- 
chanics.” (Printed in “ Science,” Feb. 8, 1895.) 
J. F. Kemp, 
Recording Secretary. 
ReEeGuLtar Business MEETING. 
December 3d, 1894. 
The Academy was called to order by President RrEs, about 
thirty persons being present. 
The Secretary read the minutes of the last business meeting, 
and on motion they were approved. 
