Some new bodies have been proposed to supersede chloroform, as a means of rendering a person insensible to pain during an operation. One of these is an organic compound called "amylene," a product of potato oil; another is oxyd of carbon. This is used externally on the diseased part; taken internally it is a poison, having ammonia as an antidote. The last is carbonic acid. The operation is performed under a stream of this gas, which produces insensibility in the part, and has been successfully used in the extraction of cancers, ulcers, and kindred diseases.
This article was originally published with the title "New Anesthetic Agents"