258 
crystals, with a silky lustre. Dried over Sulphuric acid and 
analyzed, the results obtained showed its composition to be 
CH > CH NiO. 
C;H;0; >C2oHaN2O2 
Solutions of this salt yield the characteristic reactions of 
Quinine and Meconic acid. 
October 16th, 1871. 
The President in the chair. ‘Twenty-seven persons present. 
Dr. L. FEUCHTWANGER exhibited a specimen of a Branch 
of a Tree, from Long Branch, N. J., which was of interest on 
account of its conversion into pyrites; also specimens of 
Calcareous Incrustations from a cave near Richfield Springs, 
N. Y; also a specimen of Isoliles gigus, from Trenton Falls, 
Ny. 
Pror. A. M. Epwarps exhibited specimens of so-called 
Claystones, from Hanover, N. H. He had had an opportunity 
of observing the formation of these concretions during the 
last summer. They were formed in a cliff of fine sand on the 
shore of the Connecticut river, and when first seen are very 
friable, but gradually harden so that at last a conglomerate 
results, in which, in most cases, the grains are very fine, but 
occasionally the particles united together are coarse, as in one 
of the specimens shown, where a stone nearly an inch in 
diameter occurs. Large slabs of the same material are found 
at Norwich, Vt. A chemical examination reveals the fact 
that the agglutinating material is for the most part Calcium 
Carbonate with some Alumina, for Hydrogen Chloride, (muri- 
atic acid) dissolves both Calcium and Aluminum. He thought 
concretions of this character were of interest in connection 
with the matter of the genesis of sandstones which had en- 
gaged the attention of the Society, for some time past He 
