"In the autumn of 1846 Dr. W. T. G. Morton, a dentist in Boston, a person of great ingenuity, patience, and pertinacity of purpose, called on me several times to show some of his inventions. At that time I introduced him to Dr. John C. Warren. Shortly after, in October, I learned from Doctor Warren that Doctor Morton had visited him and informed him that he was in possession of or had discovered a means of preventing pain, which he had proved in dental operations, and wished Doctor Warren to give him an opportunity in a surgical operation. After some questions on the subject in regard to its action and the safety of it, Doctor Warren promised that he would do so.... The operation was therefore deferred until Friday, October 16, when the ether was administered by Doctor Morton, and the operation performed by Doctor Warren." It was eminently fitting that Dr. John C. Warren should be the one to introduce painless surgery to the medical profession. Next to Morton he deserves the highest credit for the revolution which it effected: a glorious revolution, fully equal to that of 1688. His quick recognition of Morton's character, and the confidence he placed in him as the man of the hour, deserve the highest commendation. Doctor Warren had invited Doctor Jackson to attend this critical experiment with sulphuric ether at the Massachusetts Hospital; but he declined with the trite excuse that he was obliged to go out of town. This has been generally interpreted by the medical profession as a lack of courage on Jackson's part to face the music, but it may also have been owing to his jealousy of Morton. This happened October 16th, and on November 13th, Dr. C. T. Jackson wrote to M. Elie de Beaumont, a member of the French Academy, this remarkable letter: "I request permission to communicate through your medium to the Academy of Sciences a discovery which I have made, and which I believe important for the relief of suffering humanity, as well as of great value to the surgical profession. Five or six years ago I noticed the peculiar state of insensibility into which the nervous system is thrown by the inhalation of the vapor of pure sulphuric ether, which I respired abundantly,--first by way of experiments, and afterwards when I had a severe catarrh, caused by the inhalation of chlorine gas. I have latterly made a useful application of this fact by persuading a dentist of this city to administer the vapor of ether to his patients, when about to undergo the operation of extraction of teeth. It was observed that persons suffered no pain in the operation, and that no inconvenience resulted from the administration of the vapor."