The silvered plate at the top of this simple wood frame reads “B. PIKE & SONS / 518 BROADWAY / NEW YORK.” The barometer scale extends from 27 to 31 inches of mercury; it is graduated by tenths and ...
Lum Woodruff, a resident of Ann Arbor, Michigan, who reported weather observations to the Smithsonian Institution, patented a portable barometer that proved to be extremely popular. Its key feature ...
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