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shares of five hundred pounds each, their works being at
Ravenshead, in Lancashire. These works
have been very successfully conducted, and, according to a late writer,
are rivalled by none, excepting those at "St. Gobain," in France.
Since the excise duty on plate-glass has been repealed, its manufacture
has increased to a wonderful extent; the quantity used in the construction
of the Crystal Palace, for the World's Fair, being probably many times
larger than that manufactured twenty years since in the kingdom of Great
Britain in any one year.|
An English paper states that
Roger Bacon, at sixty-four years of age, was imprisoned
ten years for making concave and convex glasses, and camera-obscura and
It is to many persons matter of great surprise that
the manufacture of plate-glass has never been introduced into this country.
The whole process is a simple one. The materials are as cheap here as in
England or in France. Machinery for the polishing of the surface is as
easily procured, and water-power quite as abundant, as in either country.
The manufacture, with the materials so ready to the hand, and these
together with the skill, labor, and demand, increasing every year, is most