The Bookshelf for boys and girls Book of Wonders and Curious Things (1912)
University Society, New York · New York: University Society · leaf 29
ter how heavy. It is also the greatestsafeguard against accidents caused by trainsbreaking apart. As the cars separate, the air-tube also parts, its air escapes, and the brakesare set, bringing car and train to a standstill. Early trains were wasteful of power. Oncethe steam used to drive the wheel… … GREAT MECHANICAL MARVELS 15
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.
