Johannes Jacob Wecker

Johannes Jacob Wecker (Basel 1528-1586) He was a Swiss physician. Little is known about his life. He published Antidotarum generale, a work about alchemy. His work is known for the elaborate bibliography on chemistry-alchemy. He is the first to have reported a case diphallia (man born with two penisses).

Source and external link

 * italian bio page with link to full text of antidotarum generale