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• Notes on the sampling and analysis of coal
• Splint coals of the Appalachian Region:their occurrence, petrography, and comparison of chemical and physical properties with associated bright coals
• Precision of the volatile matter determination for anthracite, low-temperature coke, and subbituminous coal
• Rare and uncommon chemical elements in coal
• Determination of moisture-holding capacity (bed moisture) of coal for classification by rank