๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

PRODUCTIVITY OF LABOR IN THE ANTHRACITE COAL MINES

โœ Scribed by PAUL F. BRISSENDEN


Book ID
124047130
Year
1917
Weight
858 KB
Volume
5
Category
Article
ISSN
2329-1354

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๐Ÿ“œ SIMILAR VOLUMES


Flushing of culm in anthracite coal mine
โœ Wm. Griffith ๐Ÿ“‚ Article ๐Ÿ“… 1900 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 929 KB

## Cztlm in Anthracite Coal Mines. 27I water can be entirely dispensed with, and the summit level can be utilized for storage, its banks being high enough to contain the highest and its bottom low enough to give the desired draft at the lowest water, the variation being taken up at the lock. In mo

ANTHRACITE COAL MINED IN 1916
๐Ÿ“‚ Article ๐Ÿ“… 1917 ๐Ÿ› American Association for the Advancement of Scienc ๐ŸŒ English โš– 111 KB
Anthracite coal production in 1906
๐Ÿ“‚ Article ๐Ÿ“… 1908 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 60 KB

THE zINC smelters of the United States are divided into two groups, -~iz.: (I) those which make high-grade spelter from special ores, this group including the New Jersey Zinc Company, and the Bertha Mineral Company, producing at Bethlehem and Palmerton, Penna., arid Pulaski, Va., spelter fro~m the r