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 Philosophi- 

 cal Society of Philadelphia. The memoir is printed in their 

 transactions ; and Mr. Hare's original memoir was reprinted 

 in the Annals of Chemistry, in Paris, and in the Philosophical 

 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 them exhibited by a celebrated Professor, 

 who mentioned Mr. Hare as the reputed author of the in- 

 vention. 



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 

 minerals, gems, and others, the greater part of which had 

 never been melted before, and I supposed that I had decompo- 

 sed lime, barytes, strontites, and magnesia, evolving their metal- 

 lic basis, which burnt in the air as fast as produced. I com- 

 municated a detailed account of my 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, 

 in my public courses of chemistry in Yale College, and that 

 the fusion and volatilization of platina, and the combustion of 

 that 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 

 the sun, have been familiar experiments in my laboratory. 

 I have uniformly given Mr. Hare the full credit of the inven- 

 tion, although my researches, with his instrument, had been 



