312 Scientific Intelligence. 
21. Discovery of American Tungsten and Tellurium. 
Neither of these metals, so far as we are informed, has been 
announced as existing in either of the Americas. It is well 
known to mineralogists, that tungsten is very rare, and that tel- 
lurium is found only in Transylvania. 
We have now the pleasure to state that both these metals 
exist in the Bismuth mine, in the town of Huntington, parish 
of New-Stratford, in Connecticut, 20 miles west of N ew-Haven. 
During the examination of some ores, brought to us by Mr. 
Ephraim Lane, the proprietor of this mine, we obtained the tungs- 
ten in the state of yellow oxid, and the tellurium in the metal- 
lic. state. 
The tungsten is stated to be abundant in the mine; it is the 
ferruginous species, known to mineralogists by the name of wolf- 
We cannot yet say whether the tellurium is abundant, hav- 
ing obtained it from only two pieces; from these we extracted 
_ also. tungsten, so that it may possibly constitute anew mineral 
species. Further particulars will be given in our next Number. 
22. Mr. Sheldon’s Application of Chesnut Wood to the Arts of 
Tanning and Dyeing. 
REMARKS, 
A considerable time since, we were confidentially made ace 
quainted with the discovery detailed in the following letter. 
We have repeated the most important of Mr. Sheldon’s expe! 
ments, both in relation to tanning and dyeing, and are well sat- 
isfied that the discoverer has not overrated, or erroneously & 
timated, the value of his own results. We are persuaded hat 
the highly useful arts alluded to, will derive important aid from 
the use of a material so abundant’ and cheap as chesnut woO™ 
To Professor Silliman. 
Springfield, Mass. Feb. 275 1819: 
Dear Sir, 
L SEND you, a more particular account of the newly discov” 
ered properties of the chesnut. 
