In 1911, for the first time in America, six enacted laws requiring physicians to report cases of occupational diseases. These states are California, Connecticut, Illinois, Michigan, New York and Wisconsin, These laws have many points in common, and most commonly the diseases to be reported are: anthrax, compressed air illness, and poisoning from lead, phosphorus, arsenic and mercury or their compounds. In Wisconsin, for some unexplained reason, anthrax is omitted from this list, and in Illinois the law is obscure, but apparently includes poisoning from "sugar of lead, white lead, lead chromate, litharge, red lead, arsenate of lead or paris green," and "the manufacture of brass or the smelting of lead or zinc."
In most instances the notification by the physician is to include as a minimum the name and full postal address and place of employment of the patient, and the disease. Michigan specifically requires in addition, "the length