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The Feldspars of the New England and North Appalachian States

Description: From Introduction: "The investigations presented in this bulletin have been undertaken by the bureau with a view to a better understanding of the conditions which confront the producer of commercial feldspar and also with the object of determining wherein the various deposits of feldspar differ."
Date: 1916
Creator: Watts, A. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Technology of Marble Quarrying

Description: From Preface: "The aim of this bulletin is to present to the marble workers of the United States a concise statement of the most efficient and economical methods now in use for producing and preparing marble. The observations outlined refer chiefly to the methods employed in the quarrying of marble and the conditions that affect successful operation; the structure of marble and its relation to quarry processes; waste through rock imperfections and inefficient quarry methods; and means of elimin… more
Date: 1916
Creator: Bowles, Oliver
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Molybdenum; Its Ores and their Concentration with a Discussion of Markets, Prices, and Uses

Description: From Scope and Purpose of Investigation: "The direct purpose of the bulletin is, on the one hand, to prove to possible consumers of molybdenum that the element is not as rare as commonly supposed, and that this country possesses many deposits of low-grade ore from which large supplies may be derived, and on the other hand, to prove to present and prospective producers of molybdenum that there is a latent market for their product in the alloy-steel trade, which needs only the assurance of steady… more
Date: 1916
Creator: Horton, Frederick W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Refining and Utilization of Georgia Kaolins

Description: From Introduction: "The investigation described in this report was carried on to determine the practicability of applying technical control of clay disperse systems to the refining of kaolins and the utilization of the prepared clay in the manufacture of vitreous china and wall tile."
Date: 1916
Creator: Sproat, Ira E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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