human
The deflagrator of Professor Hare of Philadelphia is an apparatus well calculated for many interesting experiments on galvanism. To that gentleman we are indebted for the compound blowpipe, which produces a very intense heat by the combustion of hydrogen in contact with oxygen gas. Notwithstanding Professor Clark of England has laid claim to the apparatus, and the use of hydrogen gas in this way, the merit of the discovery is due to our learned and ingenious countryman.
gpt
Subjects and Importance of Chemistry