asylum at Pesaro, he reformed it, and established a journal, written and managed by the insane. He then returned to Pavia, where he continued his psychiatric work, investigated the influence of atmospheric conditions on the mind, invented an instrument to measure pain, and engaged in a great number of studies, marked by extraordinary ingenuity, patience, and insight. Even as a youth Lombroso possessed the art of divining fruitful ideas, which at the time appeared absurd to scientific men as well as to the public. Every line of investigation he took up was at the time apparently opposed to the tendency of thought, and only received general attention at a later date. This was true, to some extent, even of the great achievement of his life. In the year 1859--perhaps the most memorable of the century--Broca, who had a decided influence on Lombroso, had inaugurated the naturalist method of treating man with the Anthropological Society of Paris. The illuminating genius of Virchow, and his prodigious energy, which has done so much for anthropology and the methods of anthropology, also had its influence on the Italian, in some respects a kindred spirit. And Darwin’s _Origin of Species_, published in 1859, supplied, for the first time, an indispensable biological basis, and furnished that atavistic key of which Lombroso was tempted to make at first so much use, sometimes, it must be added, so much abuse. These circumstances combined to render possible, for the first time, the complete scientific treatment of the criminal man as a human variety, while Lombroso’s own manifold studies and various faculties had given him the best preparation for approaching this great task. It was in 1859 that he first conceived this task; _L’Uomo Delinquente_ was not, however, finally published until 1876, while the second volume only appeared in 1889.