PRELIMINARY REPORT ON THE CLAYS AND SHALES OF MINNESOTA BY FRANK F. GROUT AND E. K. SOPER.
PLUS A 18 PAGE PHAMLET 1949 CLAYS.
PUBLISHED BY THE UNIVERSITY OF MINNESOTA, 1914.
BOOK AND PHAMLET ARE IN VERY GOOD CONDITION, NO MARKINGS.
175 PAGES, WITH TWO-FOLDOUT MAPS, ILLUSTRATED.
EMAIL ANY QUESTIONS (16-P)