Folder 318
Container
Contains 1 Result:
Davies, Eric. Three papers related to the St. John D'El Rey Mining Company, 1920-1922
File — Folder: 318
Scope and Contents
"Proposed Method for Improving the Underground Atmospheric Conditions at the Morro Velho Mine of the St. John Del Rey Mining Company, Limited, Brazil," "The Air Cooling Plant at the Morro Velho Mine of the St. John Del Rey Mining Company, Limited, Brazil," and "Further Contributed Remarks on Ventilation Problems at Champion Reef Mine" (undated).
Dates:
1920-1922