"11. Love of solitude is a very suspicious sign. Children are naturally sociable, almost without exception. They have a natural dread of being alone. When a child habitually seeks seclusion without a sufficient cause, there are good grounds for suspecting him of sinful habits. The barn, the garret, the water-closet, and sometimes secluded places in the woods, are the favorite resorts of masturbators. They should be carefully followed and watched, unobserved."