The Bookshelf for boys and girls Book of Wonders and Curious Things (1912)
University Society, New York · New York: University Society · leaf 170
n ordinary house. These two forms will show how the screw-models work. Those driven by flapping wingsmay be more briefly described, for they do notfly so well and are harder to make. The leastcomplicated ones were made by Jobert andPenaud. In Joberts a stretched rubber bandpulls a cord and revolves… … JOBERT S MODEL.
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
Internet Archive · BYU–Idaho · Public Domain Mark 1.0. Free to use for anything.
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