Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 351
FOLDING-WING TYPE. Study the plans of large machines carefully beforeyou can make your model reasonably to scale.Slight changes will have to be made owing to thelimited power at your disposal, and also becausethe weight of the rubber strands is distributed insome cases along the entire length of…
Children's literature
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