TERRA-COTTA, BRICK, ETC.
115
from which it is not difficult to select objects suitable foi
most of the smaller constructions, thereby saving a considera-
ble item of cost for new patterns. The Superintendent of
the works (Mr. Taylor) was formerly employed in the works
of Mr. Blashfield, Stamford, England. This establishraent
exhibited largely, and with great credit, at the Paiis Expo
sition in 1867, and is making the Ornaments for the Art
Museum now building in Boston.
Refractory Bricks, Retorts, Crucibles, etc.
In refractory materials of all kinds, for construction of fui-
naces and various metallurgical purposes, the Exhibition was
particularly rieh. The amount and variety of such goods
were far greater than at Paris in 1867, and there was a
notable advance in the art, especially in the production of
special forms of large dimensions, and the increasing use of
them in the construction of furnaces. Attention may be
directed to the exhibits of fire-brick for the hearths and
crucibles of blast-furnaces and for the stack complete, which
are now being made at several establishments at very moder
ate prices. The formation of tubes and retorts of superior
density and strength, by hydraulic pressure, is also worthy
of attention.
H. J. Yygen & Co., Duisburg, Rhein-prov. Deutsches,
Reiches, exhibited fire-brick and blocks for blast-furnaces,
cast-steel melting furnaces, reheating furnaces,
gas-retorts, and for smelting purposes generally.
The plumbago-pots for cast-steel from this estab-
lishment are formed as in the annexed outline,
and stand about two feet high.
These works were founded in 1856. The
value of their prodnets in 1871 was 200,000 tha-
lers for 360,000 cwt. of goods, being the heaviest
production of large pieces in Germany. There are 266 work-
men employed, and 3 steam-eugines of 130 horse-power.
C. Kulmiz, Marienhütte.—Fire-bricks and fire-clay, gas-
retorts and drain-tiles were exhibited by this firm. The
value of their products in 1871 was 150,000 thalers, and, in
