PROCEEDINGS 
OF THE 
LYCEUM OF NATURAL HISTORY 
IN THE 
CITY OF NEW YORK. 
April 4, 1870. 
The President in the chair. Hight persons present. 
The Presideat, as chairman, reported from the Committee, 
on the publication of the proceedings of the Lyceum, that 
arrangements had been made to carry out the wishes of the 
society, and that the first number would shortly appear ; 
Prof. Edwards having charge of the reporting. 
Dr. L. Feuchtwanger sent, for exhibition, some fine specimens 
of crystallized Quartz and Arkansite, from the Hot Springs 
of Arkansas. The Quartz was mostly in curious flattened 
erystals, arranged in cockscomb form, and the Arkansite in 
remarkably perfect crystals. 
Prof. A. M. Edwards described a late addition to the 
Micro-Spectroscope, contrived by Mr. John Browning, of 
, London, with which, by projecting a ruled scale into the field, 
igi, ¥. 1 
