REFERENCES
1.
Personal communication
wi~h
Mr. Michael Volker, Ashland Oil Refining,
Ashland, Kentucky.
March 1, 't919.
2.
"Chemical Process Industries" fourth edition, Shreve and Briak, McGraw-
Hill Book Company, New York,1911.
3.
Chute, Andrew E.
Tailor Sulfur Plants to Unusual Conditions.
Hydro-
carbons Processing, April 1911, pp. 119-124.
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