Those indefatigable purveyors for the public, of health, comfort, and personal attraction, Messrs. Rowland and Son, Hatton Garden, have reformed the medicinal system, and promised new strength to the human constitution by the introduction recently of a specific originally used by the Emperor Napoleon, for the head ache. We understand that Messrs. Rowland and Son obtained the secret of preparing the alleviator for a very valuable consideration, and that hitherto it has been found of unerringly felicitous results in removing the most intense vertigo, and in preventing its return by simple external application only. This is indeed an important pubic acquisition, one in fact which justly classes Messrs. Rowland and Son with the first reformists of modern times.