refined lead
Laboratory Procedures

Analyse & Assay Refined Lead

Table of ContentsLEAD ANALYSIS METHODTYPICAL ANALYSIS OF A MARKET LEAD In preparing a sample of refined lead for analysis, it is necessary to exercise great care

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handling ore
Geology

Handling Ore in Stopes and Drifts

Table of ContentsHANDLING ORE IN STOPES AND DRIFTSShovelingCOMPARATIVE SHOVELING COSTS FOR DIFFERENT METHODS OF STOPINGHANDLING ORE IN CHUTESHANDLING ORE ON LEVELSHand and Animal TrammingMechanical HaulageStorage-battery

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ordnance steel
Various

Effect of Sulfur and Oxides in Ordnance Steel

Table of ContentsDESIGN OF GUN FORGINGSRESULTS OBTAINED WITH ELECTRIC STEELEFFECT OF PHOSPHORUSEFFECT OF SULFUREFFECT OF OXYGENPHOTOMICROGRAPHS OF OPEN-HEARTH AND ELECTRIC STEELMANUFACTURE OF STEEL AT NAVAL

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burrette and fittings silver
Laboratory Procedures

Silver Fineness Determination

Table of ContentsDETAILS OF THE METHOD Volhard’s Method(a) Stock Solutions.—(b) Working Solutions.—Precautions.—Calculation.— This excellent volumetric method commends itself as a means of estimating the fineness of

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semi metals mineralogy
Mineralogy

Descriptive Mineralogy Classification

Table of ContentsSCHEME OF CLASSIFICATIONI. NATIVE ELEMENTS Scope of Descriptive Mineralogy. — It is the province of Descriptive Mineralogy to describe each mineral species, as

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