1881. 5) Trans. N. Y. Ac. Scz. 
October Io, 1881. 
SECTION OF CHEMISTRY. 
Vice-president, Dr. B. N. Martin, in the Chair. 
Nineteen members present. 
A paper was read by Mr. James H. STEBBINS, Jr., of which the 
following is an abstract : 
ON SOME NEW SALTS OF THYMOLE SULPHO-ACID, AND SOME NEW 
FACTS CONCERNING THE SAME. 
60 grms. thymole were dissolved in 50 grms. 66° sulphuric, at a 
temperature of 100° C. The pink crystalline mass so obtained was dis- 
solved in water, and converted into the lime salt. 
Calctum Salt—tThis salt crystallizes with two molecules of water, in 
rhombic plates, and shows under the polariscope a beautiful effect of 
circular polarized light. 
Formula, 
a (Cs Hz (C-H;) (Cs H:) (O H) S Oz)2 Ca + 2H: O. 
a. Calcium salt of alpha thymole sulpho-acid. 
Ammonium Salt.—This salt was obtained by decomposing the lime 
salt, with ammonic carbonate. It crystallizes in white rhombic plates, 
with 2 mols. of water. 
Formula. 
a Ce He (C Hs) (Cs Hz) (N Hi S Os)a H + 2 HO. 
The sodium salt has likewise been obtained, and will be described in 
a subsequent paper. 
Remarks were made by Mr. JAMES D. WARNER on the nature of 
the corona of the Sun, etc. Mr. STEBBINS reported the yellow colora- 
tion of the atmosphere in September at the Thousand Islands in the St. 
Lawrence. 
October 17, 1881. 
SECTION OF GEOLOGY AND MINERALOGY. 
The President, Dr. J. S. NEWBERRY, in the Chair. 
Fifty-one persons present. 
Dr. Newserry exhibited specimens of native lead and oxide of 
lead from a mine in the Wood river country, Idaho, crystallized 
gray copper, and fine erystallized rhodochrosite from the Ulay 
mines, Southwest Colorado. 
Dr. T, EGLESTON pronounced the crystals of Rhodochrosite the finest 
he had ever seen, and probably the finest specimens ever yet found. 
