after twelve at night—for the purpose of repeating La Brière’s great experiment for the removal of the poisonous and igneous properties of Phosphorus without decreasing its revivifying and medicinal qualities. I had experimented untiringly for five months, at a cost almost ruinous to me, but still with an invincible conviction that I should succeed, and give my secret to the world, instead of perishing like the poor Frenchman, who burst an artery from excitement at his success, having made about eleven ounces that fulfilled his entire expectations. Part of his process only survived him, and many a man, like myself, had attempted to fathom the secret and gain the enormous fortune that must result from complete success, but hitherto in vain. “The experiment was a most important one. Churchill had produced his hypophosphites, and they had lamentably failed of the intention; hence, in working at this mine, I had avoided his and others’ formulæ. Success, I felt, would not only benefit my own private practice, but would be of incalculable service to the medical profession, and still more to that large class of persons who by over mental exertion, severe intellectual and sedentary occupations, and by passional and other imprudent excesses, had deprived themselves of the wine of life, by draining themselves of nervous force; and become spiritless, semi-insane, gloomy, and