BASIC ALKALI PRODUCTS-NAMELY, SODA ASH, CAUSTIC SODA, AND MODIFIED FORMS OF EACH OF VARYING ALKALI CONTENT; BICARBONATE OF SODA; CHROMIUM CHEMICALS; SILICATE PRODUCTS; CHLORINATED PRODUCTS-NAMELY, CHLORINATED SOLVENTS, CHLORINATED PHENOLS, CHLORINATED PARAFFINS, CHLORAL AND MONOCHLORACETIC ACID; SYNTHETIC RESINS; AND AGRICULTURAL CHEMICALS-NAMELY, PESTICIDES