Where I come from Donora Killer Fog' Chapter 1 list the four materials and amounts that would be delivered daily via barge to Donora.
a) Coal - 300 tons, Zinc - 200 pounds, Fluoride - 150 pounds, Cement - 100 bags
b) Zinc - 300 tons, Fluoride - 200 pounds, Cement - 150 pounds, Coal - 100 bags
c) Cement - 300 tons, Coal - 200 pounds, Zinc - 150 pounds, Fluoride - 100 bags
d) Fluoride - 300 tons, Cement - 200 pounds, Coal - 150 pounds, Zinc - 100 bags
