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Scientific American, Vol. 25, No. 18 (1871) (1871)

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An illustration from Scientific American, Vol. 25, No. 18 (1871), 1871, leaf 0
d Mr. Ziller, the archi-| suspended matters are thrown down by boiling and evapora-| thick requires the extra expenditure of fifteen per cent more tect of the Academy, to prepare a design for carrying into | tion, and slowly accumulate as a whitish, tough, porcelain | fuel. As the scale thickens… … and subscriptions will be |= ment that may be readi- received by allthe Greek fF” ly blown off as often as consuls. required. The sulphate +81 of lime is decomposed Boiler Incrustatien., by the carbonate of soda Water is rendered hard | i of the first reaction, sol- by the presence of earthy ' |…

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