"It is needless to recapitulate all the causes of unchastity which have previously been quite fully dwelt upon, nearly all of which are predisposing or exciting causes of solitary as well as of social vice. Sexual precocity, idleness, pernicious literature, abnormal sexual passions, exciting and irritating food, glutton, sedentary employment, libidinous pictures, and many abnormal conditions of life, are potent causes in exciting the vile practice; but by far the most frequent causes are evil associations, wicked or ignorant nurses, and local disease, or abnormality. These latter we will consider more particularly, as they have not been so fully dwelt upon elsewhere."