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CONTENTS
Page
Preface....
25
Part I. The Molding Sands of Maryland. By David W. Trainer, Jr... 27
The Feldspar Industry in Maryland.
Part II. Notes on Feldspar, Quartz, Chrome, and Manganese in Mary-
land. By Joseph T. Singewald, Jr......
Introductory....
Production..
Uses..
Occurrence.
91
93
94
96
Economic aspects of Maryland Feldspar Industry....... 102
Description of deposits....
106