16 ROCHESTER ACADEMY OF SCIENCE. [June 24, 
Favosites, found at the falls, so much resembled in form the Basalt col- 
umns of Giants’ Causeway, it was probable that these columns were a 
huge form of /avosites. 
Mr. H. K. Puinney described the formation of a columnar struc- 
ture, analogous to that of trap dykes, in a block of sandstone which had 
been intensely heated in a coal fire. 
Pror. S. A. Larrimore related how the Microscopical Society, 
from which the Academy sprung, had its beginning in an informal 
meeting in the very room in which the Academy was now meeting, 
which room was at that time his chemical lecture room. Personally 
and in behalf of the Corporation and Faculty of the University he 
welcomed the Society to the University, and hoped it had now ceased 
its migrations and found its permanent and appropriate home. 
JUNE 24, 1889. 
STATED MEETING. 
In the Geological Lecture Room, Sibley Hall, University of Roch- 
ester. 
The President, Pror. H. L.. FAIRCHILD, in the chair. 
Sixty-five persons present. 
Mr. H. L. Preston exhibited specimens of Topaz of unusual size, 
recently found in Japan. 
Mr. Henry C. Maine read a paper, illustrated by lantern views, on 
SOLAR: PELYSIGS: 
The subject was discussed by Prof. Lattimore, Mr. E. E. Howell, 
and the President. 
Mr. E. E. Howe .t exhibited a new iron meteorite from Erath Co., 
Texas, weighing 179 pounds, also a number of other meteoric speci- 
mens, and discussed the subject of meteors in general. 
Mr. WiLriaM STREETER Called attention to a parasite found on the 
potato beetle when the latter feeds upon the tomato plant. ‘ 
Adjourned to the second Monday in October. 
