Mining Sulfur.
Description:
Patent for a method of mining sulfur and other things that have similar melting points that is less expensive and more efficient than previous methods. A machine sprays hot fluid at fissures where the mineral exists, melts it, and carries it away in the stream.
Date:
April 27, 1897
Creator:
Higgins, Pattillo & Carroll, George W.
Partner:
UNT Libraries Government Documents Department