Memoirs of the most eminent American mechanics : also, lives of distinguished European mechanics : together with a collection of anecdotes ... relating to the mechanic arts : illustrated by fifty engravings (1852)
Howe, Henry, 1816-1893, New York Museum of Science and Industry. Library · New York : Harper & Brothers · leaf 232
o success; andthat it is wrong to trust implicitly to common methods, even whenexperience has shown them to be sufficient in common cases.For the height of twelve feet from the rock the building is solid.Every course of masonry is composed of stones firmly jointed anddovetailed into each other, and… … [Horuontal Section of the I9\ver and solid part of the Eddystpne Lighthouse; showing themode in which the courses of stone are dovetailed together.] The interior, which is accessible by a moveable ladder, consistsof four rooms, one above the other, surmounted by a glass lantern,in which the lights…
Industrial arts · Inventors
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