Jacob Snowman, The Surgery of Ritual Circumcision
“ Having adopted all these precautions the Mohel may be confident that in regard to his own hands, the instruments, and the dressings he has exercised every care which surgical science demands. The only other important detail which demands attention is the part concerned in circumcision. It is obvious that all the safeguards hitherto considered are valueless unless the infant himself is in a perfectly clean condition. ”
