icksand. So Mr. Haton de la Goupil- pipes. There forms, therefore, around each of the lat- The engraving represents a cover for cooking kettles lere, in briefly describing the operations before the ter a truncated cone of ice whose larger base is situated beneath. These truncated cones gradually… … Mr. Poetsch proposes to apply his system to SINKING SHAFTS BY FREEZING. the constructing of bridge piers, and has just made a contract with the government of Rou- deep shafts by such a process. New attempts have mania for the construction of the twelve piers of the nevertheless been made since with…
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