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 New-Haven. 



During the examination of some ores, brought to us by Mr. 

 Ephraim Lane, the proprietor of this mine, we obtained the 

 tungsten in the state of yellow oxid, and the tellurium in the 

 metallic state. 



The tungsten is stated to be abundant in the mine ; it is the 

 ferruginous species, known to mineralogists by the name of 

 wolfram. 



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 a new 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 Dying. 



REMARKS. 



A considerable time since, we were confidentially made 

 acquainted with the discovery detailed in the following letter. 

 We have repeated the most important of Mr. Sheldon's expe- 

 riments, both in relation to tanning and dying, and are well sa- 

 tisfied that the discoverer has not overrated, or erroneously 

 estimated, the value of his own results. We are persuaded 

 that the highly useful arts alluded to, will derive important aid 

 from the use of a material so abundant and cheap as chesnut 

 wood. 



To Professor Silliman. 



Springfield, Mass. Feb. 27, 1819. 

 Dear Sir, 

 I SEND you a more particular account of the newly disco- 

 vered properties of the chesnvit. 



