The Compound Blowpipe. 99 
In 1802, and 1803, 1 was occupied with him, in Philadelphia, 
in prosecuting similar experiments on a more extended scale ; 
and a communication on the subject was made to the Philoso- 
phical Society of Philadelphia. The memoir is printed in 
their Transactions ; and Mr. Hare’s original memoir was re- 
printed in the Annals of Chemistry, in Paris, and in the Phi- 
losophical Magazine, in London. 
Mr. Murray, in his System of Chemistry, has mentioned Mr. 
Hare’s results in the fusion of several of the earths, &c. and 
has given him credit for his discovery. 
In one instance, while in Europe, in 1806, at a public lec- 
ture, I saw some of these results exhibited by a celebrated pro- 
fessor, who mentioned Mr. Hare as the reputed author of 
the invention. 
In December, 1811, I instituted an extended course of 
experiments with Mr. Hare’s blowpipe, in which I melted 
lime and magnesia, and a long list of the most refractory mine- 
tals, gems, and other substances, the greater part of which had 
hever been melted before, and I supposed that 1 had decompo- 
sed lime, barytes, strontites, and magnesia, evolving their metal- 
lic bases, which burned in the air as fast as produced. I com- 
municated a detailed account of experiments to the Con- 
necticut Academy of Arts and Sciences, who published it in 
their Transactions for 1812; with their leave it was commu- 
nicated to Dr. Bruce’s Mineralogical Journal, and it was 
Printed in the 4th number of that work. Hundreds of my 
Pupils can testify, that Mr. Hare’s splendid experiments, and 
many others performed with his blowpipe, fed by oxygen and 
hydrogen gases, have been for years past annually exhibited, 
ii my public courses of chemistry in Yale College, and that 
the fusion and volatilization of platina, and the combustion of 
metal, and of gold and silver, and of many other metals ; 
that the fusion of the earths, of rock crystal, of gun flint, of 
the corundum gems, and many other very refractory sub- 
Stances ; and the production of light beyond the brightness of 
i Sun, have been familiar experiments in my laboratory ; 
i ‘ve uniformly given Mr. Hare the full credit of the inven- 
en; although my researches, with his instrument, had been, 
