Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 518
oh, do keep still, pussy! you re worse than papa! … A SCIENTIFIC TOY BRIDGE. By E. J. Prindle. Having been asked by a youngster in whomI am interested to build a toy bridge, it oc-curred to me to teach him the principles onwhich a railroad truss-bridge is constructed,so that the building of the toy would be an ob-ject-lesson in engineering. The…
Children's literature
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