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Accelerated Laboratory Test for Determination of Slacking Characteristics of Coal
Report issued by the U.S. Bureau of Mines on laboratory testing developed to measure the slacking of coals. Testing methods and results are presented. This report includes tables and graphs.
Date:
November 1930
Creator:
Fieldner, Arno Carl; Selvig, W. A. & Frederic, W. H.
System:
The UNT Digital Library
Varietal Purity Certification of Agricultural Field Seed Certification Laws, Rules, Regulations, and Instructions Relative to Enforcement
Agriculture bulletin that includes the varietal purity certification. This bulletin also includes certification laws, rules and regulations, and instructions that are relative to enforcement.
Date:
November 1930
Creator:
Texas. Department of Agriculture.
System:
The Portal to Texas History