Regulation of Practice by Government: Unauthorized practice. The defendant was a licensed cosmetologist and operated a "clear-skin" institute. He was charged with practicing medicine without a license in violation of Michigan Comp. Laws 1929, Paragraphs 6743 and 6745. A jury found him guilty, and he appealed. The judgment was affirmed. The evidence showed that the complaining witness was suffering from acne and that the defendant, for a fee, undertook to treat her and did treat her by means of applying ointment and extracting blackheads