Well records and quality of water in the Tatum dome area, Lamar County, Mississippi (open access)

Well records and quality of water in the Tatum dome area, Lamar County, Mississippi

None
Date: April 3, 1963
Creator: Lang, J. W. & Harvey, E. J.
System: The UNT Digital Library
High Purity Calcium (open access)

High Purity Calcium

Technical report. From Introduction : "For more than a century, methods employed in preparing calcium were based largely on electrowinning and the most successful were based on [Sir Humphrey] Davy's process. ... In general, the metal was of adequate quality for the industrial applications of the time, and although by 1940 some strides had been made in the purification of calcium, interests in the better grades of the metal were limited essentially to experimental work of academic concern."
Date: April 3, 1963
Creator: Wilhelm, H. A. & Carlson, O. N.
System: The UNT Digital Library