National Geographic : 1961 Oct
Webbed with steel, the towers of MinatitlAn, Veracruz State. Petr6 oo leos Mexicanos, or Pemex, whose hsa name appears on the tank truck, directs the nationalized oil industry. C NATIONALGEOGRAPHICSOCIETY Swinging like a pendulum, a clam bucket shifts sulphur from train to ship on the docks of Coatza coalcos, Veracruz. Salt domes at near-by JAltipan cap some of the world's richest deposits of the mineral. Super-heated steam piped into the earth melts the sulphur; compressed air blows it to the surface. Dry ing and crushing prepare the powder for export. Mask and glasses protect a worker's nose, throat, and eyes from acrid sulphur dust.