Those who are interested in such matters may turn to M. Carlier's pages for minute information regarding the habits, coteries, houses of debauch, bullies, earnings, methods of extortion, dwellings, balls, banquets, and even wedding-parties of these people. A peculiar world of clandestine vice in a great city is revealed; and the authentic documents, abundantly presented, render the picture vivid in its details. From the official papers which passed through M. Carlier's bureau during ten years (1860-70), he compiles a list of 6,342 pæderasts who came within the cognisance of the police: 2,049 Parisians, 3,709 provincials, 484 foreigners. Of these 3,532, or more than the half, could not be convicted of illegal acts. While devoting most of his attention to professionals who dress like women, and have become exactly similar to the effeminated youth described in _Monsieur Vénus_,[9] Carlier gives some curious details about the French army. Soldiers are no less sought after in France than in England or in Germany, and special houses exist for military prostitution both in Paris and the garrison towns.[10] Upon this point it should be remarked that Carlier expresses a very strong opinion regarding the contagiousness of antiphysical passion. And certainly many facts known about the French army go to prove that these habits have been contracted in Algeria, and have spread to a formidable extent through whole regiments.[11] In conclusion, M. Carlier, though he so strongly deplores the impunity extended by French law to sexual inversion, admits that this has not augmented the evil. Speaking about England, where legal penalties are heavy enough, he says; "Though they call it the _nameless crime_ there, it has in England at least as many votaries as in France, and they are quite as depraved."[12] IV. LITERATURE--MEDICO-FORENSIC.