pleasure would be misplaced apropos of the mutual ticklings of two snails on a vine-leaf; the subject is rather uncomfortable. Note then two helices, both bisexual, fulfilling exactly the biblical phrase: "he created them male and female"; their genital organs are very well developed; the penis and oviduct opening into a vestibule, which in the act of copulation unbellies itself in part, so that the penis and vagina come in touch with the orifice; mutual intromission takes place. A third organ comes from the vestibule, without analogy in superior animals; it is a little pocket containing a small stiletto, a jewelled dagger; it is an excitative organ, the needle to prick up desires. These beasts who have prepared for love by fasting, by long rubbings, by whole days of close pressure, finally come to a decision, the swords come out of their scabbards, they conscientiously stab each other, this causes the penis to rise from its sheath; the double mating is accomplished. There are species in which the position of the organs is such that the same individual can not be at the same time the female of the one for whom he acts as male, but he can at that moment serve as female to another male, who is female to a third, and so on. This explains the garlands of spintrian gasteropodes which one sees realizing innocently and according to the ineluctable wish of nature, carnal imaginations that have been the boast of erotic humanity. Facing this light from animal habits, debauchery loses all character and all its tang, because it loses all immorality. Man, who unites in himself the aptitudes of all the animals, all their laborious instincts, all their industries, could not escape the heritage of their sexual methods; and there is no lewdness which has not its normal type in nature, somewhere. Before leaving this repugnant milieu, one may still consider the leech. Hermaphrodite, they also practice reciprocal fecundation, but the position of their organs compels them to assume a peculiar position: the prong emerges from a pore near the mouth; the vagina is above the anus. The copulation of these wretched animals forms, therefore, a head-to-tail, the bocal sucker coinciding with the anal sucker.