Object Status:
Unlocated
Accession Date:
January 4, 1809
Primary Source Reference:
Poulson's American Daily Advertiser (Philadelphia) 4 Jan 1809
Additional Source Text:
"With which several interesting experiments on the combustion of metals, &c. are shewn every Tuesday and Thursday evenings."
"Mr Cloud of the mint has simplified Mr. [Robert] Hares blow-pipe and a Machine made by Mr. Clouds direction is now added and Rubens makes use of it for the entertainment of our visitors generally at 11 O'clock every day." Charles Willson Peale to Rembrandt Peale, 11 and 18 Sep 1808, Selected Papers, 2, part 2: 1139, 1142n
Notes:
Joseph Cloud (1770-1845) was the chief assayer at the U.S. Mint at Philadelphia from 1797 to 1836. His device was an improved oxy-hydrogen blowpipe, which could generate a flame hot enough to melt or fuse metals.
