Eng. Mar. 1916; p 266; pp 22*; 60c. IV. MISCELLANEOUS Miscellaneous Costs Alderson, M. Wa Mining Possibilities in Colombia, S. A. [A description of the alluvial deposits is ... In discussing the good points and faults items of financial interest, production figures and costs are brought out]. ... June 1916; p 324; pp 7*; 50c.
|Title||:||Mining and Engineering World|