Phossy jaw was publicized by the American Association for Labor Legislation, whose secretary, John B. Andrews, began investigating the disease in 1909 and found more than 100 cases. This report was published in the "Bulletin of the Bureau of Labor". The White Phosphorus Match Act of 1912, signed by President William Howard Taft on April 9, 1912, required manufacturers who used white phosphorus to register with district collectors of internal revenue and to file periodic notices and returns; levied a tax of two cents per hundred matches; and required makers of white-phosphorus matches to affix revenue stamps to the matchboxes.