" NEW AND VALUABLE DISCOVERY: We noticed yesterday the discovery of a new preparation by Dr Morton which is intended to alleviate the sufferings of those who are forced to undergo painful operations in surgery and dentistry, as well as to facilitate the work of operators. The effect of this new discovery is to throw the patient into a state of insensibility and while unconscious any operation can be performed without occasioning pain. We are told by a gentleman of the highest respectability that he witnessed an experiment of the use of this most extraordinary discovery at the rooms of Dr Morton one evening this week. An ulcerated tooth was extracted from the mouth of an individual without giving him the slightest pain. He was put into a kind of sleep, by inhaling a portion of this preparation, the effects of which lasted about three quarters of a minute, just long enough to extract the tooth. This discovery is destined to make a great revolution in the arts of surgery and surgical dentistry. "