The Bookshelf for boys and girls Children's Book of Fact and Fancy part 2 (1912)
University Society, New York · New York : University Society · leaf 52
r^ -v <*<-~ S***w V * ^v. * * • •- FIG. 4. THE COLLAPSED FOUR-SIDED FRAME. out changing its shape. The first picture of the four-sided figure, Fis shows that the boards DOING THINGS INDOORS AND OUT 247 must be hold up to keep them from shutting up hoard will stand more strain if it is pulled,… … FIG. 5. WORKING DIAGRAM OK Till: BRIDGE, (JIVING DIMENSIONS. put on the four-sided figure. Now look at Fig.5 on this page. Since the triangle does not change its shape,we build the hridge entirely of triangles. The firsttriangle at the left is made up of boards A, 15,and C, and rests on the little…
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
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