Decolorization of southern Illinois silica /

Bibliographic Details
Main Author: Machin, James Stewart, 1893-
Other Authors: Tooley, Fay Vanisle
Format: Book
Language:English
Series:Report of investigations (Illinois State Geological Survey) ; no. 47.
Subjects:
Description
Item Description:At head of title: State of Illinois. Department of registration and education. Division of the State geological survey.
Physical Description:35 pages : illustrations
Bibliography:Bibliography: pages 34-35.