Hyperfusible, adj. (of a substance) capable of reducing the melting ranges in end-stage magmatic fluids. The course of fractional crystallization of subalkaline magmas epitomized in
If we could keep the rock-drills running all the time, and eliminate all the other operations except as they could be carried on without interfering
A Graphic solution of Kutter’s formula for the flow of water has been worked out by Dr. L. I. Hewes in connection with his course
This paper deals specifically with heading-driving as distinguished from the broader term tunnel-driving. A heading is a pilot or path-finder for the main tunnel. Some
Since the borates which supply commerce with most of the raw materials for conversion into borax as it is used in the arts now come
All Grinding Mill & Ball Mill Manufacturers understand the object of the grinding process is a mechanical reduction in size of crushable material. Grinding can
A complete transformation has taken place in the borax industry. A most remarkable factor in this radical change in method of producing the crude borates has
In many of the old placer-mining districts are still to be found large tracts of gold-bearing gravel not suitable to be worked with a dredge,
After the completion, of the Hammond Mineral Assay & Testing Laboratory of the Sheffield Scientific School, Yale University, it became necessary to secure and assay
Cone Crusher SPIDER CAP The cast steel spider cap has been designed to serve as a feed distribution plate for coarse materials. It is recessed