Includes bibliographical references (pages 66-67) and index. "Information required in describing coal beds, with a discussion of sampling methods and applications for coal geology." At head of title: Department of the Interior, United States Geological Survey. As of 09/09/2016, GPO could not validate the distribution status of this title for the FDLP.

Abstract -- Introduction -- Descriptive terms -- Banded coal -- Vitrain -- Previtrain -- Fusain -- Attrital coal -- Impure coal -- Partings -- Nonbanded coal -- Bedding and banding in coal deposits -- Procedure for coal description -- Conditions for observation -- Preliminary procedure -- Special equipment -- Preparation of coal face -- Determination of coal layers -- Methods of recording -- Occurrences of vitrain -- Occurances of fusian -- Occurrences of attribtal coal -- Spacing and extent of cleat -- Secondary and authigenic mineral occurrences -- Effects of weathering -- Preparation of field notes -- Notes on coal sampling -- Types of samples -- Channel samples -- Block and core samples -- Column samples -- Summation of coal-bed information -- Thickness characteristics -- Concentration of ingredients -- Structural history and mineralization -- Use of analytic and coal-test data -- Special equipment and supplies useful in fieldwork on coal -- Core boxes and core shipment -- Supplies for making coal core boxes -- Construction of core box -- Installing core in box -- Core-box data card -- Shipment -- Illustrations. Information required in describing coal beds, with a discussion of sampling methods and applications for coal geology.