Toward 1845, Holcomb tells us, “one after another went into the
business,” and indeed they did. At the American Institute Fair in New
York that year a gold medal was given Henry Fitz “for the best achromatic
telescope.” In Cambridge, Massachusetts, Alvan Clark is supposed to have
already taken up the hobby of lens and mirror making. And in McKeesport,
Pennsylvania, an amateur telescope-maker now known only as “Squire
Wampler” made a small achromatic refractor which he demonstrated in 1849
to a 9-year-old boy named John Brashear, of whom more later.
Some of Holcomb’s telescopes must have come to the attention of Henry
Fitz during his wide travels as a locksmith after 1830, if, as is
reported, he was at that time pursuing his avocational interest in
astronomy. It is interesting to note that both Holcomb and Fitz seem to
have pursued feverishly the new photographic process of Daguerre in 1839,
the former near the end of his career as a telescope-maker, the latter
near the beginning of his.
The decade before 1845, when “one after another went into the business,”
seems to have been marked by the flowering of observational astronomy
in the United States. The professional work of the Navy’s Depot of
Charts and Instruments (forerunner of the Naval Observatory) began
about 1838. In 1844 the first instrument larger than 6 inches came to
this country, an 11-inch refractor for the Cincinnati Observatory. The
Bonds established what was to be the Harvard Observatory in 1839, and
by 1847 Harvard had obtained its famous 15-inch refractor from Merz and
Mabler.[6] Fitz was to have a more sophisticated market than had Holcomb.
Despite the glowing recommendations of the Franklin Institute
committee,[7] no actual use of Holcomb’s instruments by astronomers has
come to light. We may owe to the rapid progress of American astronomy
after 1840 the fact that we have evidence of a more distinguished history
for some of Fitz’s instruments. It will also be recalled that Holcomb
specialized in Herschelian reflectors. Fitz, on the other hand, made few
reflectors. He specialized in achromatic telescopes mounted equatorially,
the type of instrument which was in greatest demand among professional
astronomers at the time.
Public-domain text, read in full here on John Shaqi.
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