Original oil and gas trade magazine vintage ad for THE MATHIESON ALKALI WORKS, INC., was located at 250 Park Ave, New York City, NY. Branches were located in Philadelphia, PA, Chicago, IL, Providence, RI, Charlotte, NC, and Cincinnati, OH. Factories were in Niagra Falls, NY, Saltville, VA, and Newark, NY. (possibly NJ). MATHIESON Industrial Chemicals, manufacturer of Caustic Soda, Liquid Chlorine, Bicarbonate of Soda, Modified Virgina Soda, Soda Ash, Bleaching Powder, Anhydrous Ammonia, and Aqua Ammonia. Saltville. Unique 1928 old petroleum chemical industry magazine advertisement. Petrochemical ad.