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The Mongean Method of Descriptive Geometry

By Roever, William Henry

New York: The MacMillan Company, 1933. Book. Good. Hard Bound. First Edition. 151pp - Index - According to the procedure of Gino Loria adapted to American needs by William Henry Roever - Owners name, end papers glue darkened, light edge wear o/w good condition.


Key to Ray's New Higher Arithmetic

By Ray, Joseph

New York: American Book Company, 1881. Book. Very Good. Harbound. 215pp - Eclectic Educational Series - Edges lightly shelfworn, corners bumped o/w very good condition.


Graphic and Mechanical Computation of Thickness of Strata and Distance to a Stratum

By Mertie, J.B., Jr.

Washington, D.C.: Government Printing Office, 1922. Book. Very Good. Soft cover. 52pp - Illustrated - Fold-out charts - Prpfessional Paper 129-C - Very good.