Cross, Anson K. (Anson Kent), 1862-1944, Cross, Evelyn F. [from old catalog] · Winthrop, Mass., A. K. Cross · leaf 183
2. Plant Stand. ) The cube of 2% is correct size for study of principles. Forgroups a 2J4 cube is needed. The square prism (No. 7) is correct size for study of principles.For groups a smaller one is necessary. When not in use these models can be kept flat in an envelopebetween drawing papers, and… … Grade IX. From mounted specimen. -a£*-2f-f.2f CUBE
Drawing · Painting
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.