A text-book of assaying : $b for the use of those connected with mines.

"A Text-Book of Assaying: For the Use of Those Connected with Mines" by C. (Cornelius) Beringer is an early 20th century scientific manual created for assayers, providing detailed methods for analyzing valuable minerals. The book focuses on the importance of careful sampling and introduces principles for accurate assaying, defining the assayer’s responsibilities in determining the value of materials. It outlines key concepts such as ensuring samples accurately represent bulk material, covering techniques for various sample types like solids, liquids, and gases, and explaining calculations for moisture content, which establish a base for detailed discussions of specific assay methods used in commercial mining.