Unspecified Box 5, folder 20
Container
Contains 1 Result:
Articles and pamphlets, 1858-1860, undated, 1858-1860 Digital
FOUND IN:
Collection of Historical Scientific Instruments, Harvard University
/
Collection:
William Bond & Son records and Bond family papers, 1724-1931 (inclusive), 1769-1923 (bulk)
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Series:
V. Printed material, 1842-1908
Item — unspecified: Box 5, folder 20Identifier: hsi00001
Scope and Contents:
Contains copies of Alvan Clark's (1804-1887) New double stars (1858) and New micrometer for measuring large distances (1860); Richard F. Bond's Description of Bond's isodynamic escapement, for astronomical clocks (1860); an 1883 announcement from the Harvard College Observatory on the time change; and an undated brochure on Invar, a patented alloy of nickel-steel, issued by J.H. Agar Baugh, sole agent.