Troy Lyceum. Carlisle Mineral. 173, 
12. Troy Lyceum. 
In November, 1818, “a few citizens of Troy who had 
attended Mr. Eaton’s lectures on Bot tany and Geology,” 
associated for mutual improvement in the various depart- 
ments of natural history, and for the purpose of forming 
siiliectikg of specimens. This institution has been recent- 
ly incorporated by the Legislature of Nails and a 
lectureship created in it, which is now filled y Mr. Eaton. 
We understand that a considerable cabinet is S ady col- 
sik yang that many of the members of the institution are 
 Bstablished | in a flourishing and opulent town, patronized 
by some of its most respectable and influential inhabitants, 
Lyceum of New-York, and with other similar in 
in our principal cities, vaill add to the stock of "Aniiens 
science and do us honour.* 
13, Fibrous Sulphat of Barytes fom: Carlisle, thirty-four 
miles west of Albany 
is Carlisle mineral was supposed by many to be sul- 
pi of strontian. From my first seeing it, in July, 1818, 
expressed the opinion that it was fibrous sulphat of ba- 
tytes, (especially after finding its specific gravity to be 
4-50,) of which variety I had a foreign specimen : and this 
A communication sonteining. eutegs from the minutes 4 the Troy 
pints dated January 25th, 1819, was rezeived, and would have been 
ripening had it not been soon bijacs cershi that sian prominent subject of 
= ane 
sega was duly transmitted to the Lyceum. Having received no intima- 
since, as to the ultimate opinion of that body, I have kept the commu- 
cabin n file. 
It wil a subsequent a Ff that the nature of the hae? 
mineral is now ar ag ascertained, and that I have extracte ed son ee is 
aeeg to it and to other eat from Ba “Tro 
Or his pupils under his direc 
