It is the common belief that all subjects of sexual inversion have originally loved women, but that, through monstrous debauchery and superfluity of naughtiness, tiring of normal pleasure, they have wilfully turned their appetites into other channels. This is true about a certain number. But the sequel of this Essay will prove that it does not meet by far the larger proportion of cases, in whom such instincts are inborn, and a considerable percentage in whom they are also inconvertible. Medical jurists and physicians have recently agreed to accept this as a fact. It is the common belief that a male who loves his own sex must be despicable, degraded, depraved, vicious, and incapable of humane or generous sentiments. If Greek history did not contradict this supposition, a little patient enquiry into contemporary manners would suffice to remove it. But people will not take this trouble about a matter, which, like Gibbon, they "touch with reluctance and despatch with impatience." Those who are obliged to do so find to their surprise that "among the men who are subject to this deplorable vice there are even quite intelligent, talented, and highly-placed persons, of excellent and even noble character."[2] The vulgar expect to discover the objects of their outraged animosity in the scum of humanity. But these may be met with every day in drawing-rooms, law-courts, banks, universities, mess-rooms; on the bench, the throne, the chair of the professor; under the blouse of the workman, the cassock of the priest, the epaulettes of the officer, the smock-frock of the ploughman, the wig of the barrister, the mantle of the peer, the costume of the actor, the tights of the athlete, the gown of the academician.