192 Foreign Literature and Science. 
University 5 it olga organized remains from Tennes- 
see. A second box, from Prof. Dewey, of Williamstown, 
has also been recei ieiedics 
Some fine crystals of the North-Carolina Zircon from 
evs and some fine specimens of sappar, &c 
. Alfr 
son, were reported, besides a box of mineralogical and geo- 
logical specimens from James Pierce, Esq. 
Il. Foreign Literature and Science. 
[Communicated by Professor Griscom.]} 
The following premiums are offered by the “ Society for 
the Encouragement of National Industry” in France.* Pre- 
miums for 1821. 
MECHANIC ARTS. 
1. For the construction of a Hydraulic press, particularly 
adapted to the expression of olive and grain oil, and the 
compression of grapes and other fruits. Two thousand 
2; For the Sen oar of a witettaikk which shall not 
obstruct the current of rivers, nor impede navigation, float- 
age or the imrigation of meadows. One thousand Francs. 
CHEMICAL ARTS. 
For perfecting the materials employed in engraving en 
tiie oue Thee conditions to be fulfilled are, 1. a pro 
cedure by which the oe plates may be prepared fa a 
density suitable to the wants of the art, and arising from the 
nature of the metal and me “frohn the violent pressure of the 
coricshaed shee 2. To perfect the varnish and the man- 
er of app t so as to prevent its scaling, as well as the 
Geeideitis hich feguertty happen when the plates are cor- 
roded. 
* We have imagined that our readers will be gratified in the perusal of 
is list as it serves to shew the warm interest which is felt ina nation, with 
whom we are on terms of friendly and e intercourse, in the ad- 
the : E ‘ 4 mcou- 
finest productions of the manufactories bin: h they superintend, we should 
lad to see extensively imitated in each of the United States, having °° 
of the efficacy of such institutions sete national p ¥. 
