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Scientific American, Vol. 21, No. 21 (1869) (1869)

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An illustration from Scientific American, Vol. 21, No. 21 (1869), 1869, leaf 0
e as a simple temporary track for the wheels. It is perhaps safe to say that most of the failures in methods wetted as well as uniformly heated. The bricks are delivered can be set in operation in twenty minutes. It is both power- from the molds hot. Of course they dry much more rapidly adopted… … vested in a president, secretary, wheels, and can be easily moved treasurer, and twenty-four man- upon a track. The machine is agers—cne half of whom will be constructed entirely of iron, and ladies—who will be aided by a competent instructor, an ex- being the saving in this respect claimed over…

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