(1)
Elements of the petrographic study of bonding clays and of the clay substance of molding sands
Grim, Ralph E. (Ralph Early)
1902-
creator
Schubert, Carl Edward
1899-
Rowland, Richards A.
text
bibliography
ilu
Urbana, Ill
1940
monographic
eng
32 p. incl. illus., tables, diagrs. 25 cm.
[by] Ralph E. Grim. (2) Mineral composition and texture of clay substance of natural molding sands [by] Ralph E. Grim and Carl E. Schubert. (3) The relationship between the physical and mineralogical characteristics of bonding clays [by] Ralph E. Grim and Richards A. Rowland ... Printed by authority of the state of Illinois.
At head of title: State of Illinois ... Department of registration and education ... Division of the State geological survey ...
"Reprinted from the Transactions of the American foundrymen's association, vol. 47, no. 4, pp. 895-908, 935-953; vol. 48, no. 1, pp. 211-224, 1940."
Bibliography: p.32.
Clay
Sand
TN941 .G77
552/.52
Illinois. State geological survey. Report of investigations no. 69
gs 41000011
DLC
780909
20260227111346.0
gs 41000011