"Positive Signs.—The absolutely positive signs of solitary vice are very few. Of course the most certainly positive of all is detection in the act. Sometimes this is difficult, with such consummate cunning do the devotees of this Moloch pursue their debasing practice. If a child is noticed to seek a certain secluded spot with considerable regularity, he should be carefully followed and secretly watched, for several days in succession if needed be. Many children pursue the practice at night after retiring. If the suspected one is observed to become quickly quiet after retiring, and when looked at appears to be asleep, the bed clothes should be quickly thrown off under some pretense. If, in the case of a boy, the penis is found in a state of erection, with the hands near the genitals, he may certainly be treated as a masturbator without any error. If he is found in state of excitement, in connection with the other evidences, with a quickened circulation as indicated by the pulse, or in a state of perspiration, his guilt is certain, even though he may pretend to be asleep ; no doubt he has been addicted to the vice for a considerable time to have acquired so much cunning. If the same course is pursued with girls, under the same circumstances, the clitoris will be found congested, with the other genital organs, which will also be moist from increased secretion. Other conditions will be nearly as possible the same as those in the boy."