An elderly member of the profession presented himself entirely covered with an evident syphilitic eruption, which rapidly disappeared under the use of mercury.

The only interest about the case was the question as to how the disease had been acquired.

The doctor was evidently anxious to give all the information in his power, but was positive that he had never been exposed to any sexual risk, and as he had retired from practice, no possibility of infection in that manner existed.

He willingly stripped, and a careful examination of his entire body surface revealed no trace of lesion whatever on the genitals, or at any point, except a dusky spot on one leg, which looked like the remains of a boil.

This, the doctor stated, had been due to a small sore, the dates of the appearance and duration of which were found to fit exactly with those of a primary lesion.