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228 Astronomy
ring. This phenomenon is quite
differant from all others in the
planetary system, and appears
intended to increase the quantity
of light received from the Sun
which on account of the vast
distance, must be very small.
"Uranus" or as
it is Sometimes called, the
"Georgium Sidus" was discovered
on March 18, 1781, by Doc. Hershel,
though there are many reasons
it had been seen before, but had
been considered as a fixed star.
Its diameter is about 35112
miles; its distance from the sun
upwards of 1800 millions of miles;
and its periodic revolution in
its orbit, is performed in 83 years
and 52 days. This planet is also
attended by 6 satellites, which
were discovered by Doc. Hershall.
The number of Comets
that have been recorded in history,
is very great, amounting to several
hundreds. One of the most remarkable
of these Erratic Bodies is that which
appeared in the years 1531-1607
and 1682, and was predicted by Doc.
Halley to reappear in 1759, which it
did, passing its perihelion, or nearest
distance from the sun on March 12 1759
its periodical revolution being made
in about 76 years. It again appeared
in November 1835 and will appear
again on July 1st 1911.
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Astronomy 229
of the Sphere
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Naptha & [and] Benzine
Benzine is the first product is the
first product that arrives from the
process of refining crude oil, and
bears the same relation to naptha,
that distillate does to refined oil.
In other words, Benzine is crude
naptha. The Benzine being treated with
sulphuric acid, in the still, produces
Naptha, which is greatly used in the
manufacture of Aniline dies Dec 14 1878
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Cement for Porcelain
To Join the porcelain heads to the metal
spikes used for ornemental nails,
use a thick paste made of Portland
cement and glue.
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A Golden Meteorite
A speciman was lately picked up on
the Mohave [Mojave] Desert near Fort Yuma, which
weighs about 1 pound, and carries
free gold, of which about a dollar appears
on the surface. Dec 7, 1878
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Measuring Type
The unit of measurement is the square of
the depth of the type, called an "em"
because the letter M was at one time
a square letter. The number of these
squares contained in a line of type in
width, being multiplied by the number
of lines, or Ems, in the depth of the
page or column, gives the number of Ems.
November 9 1878
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