f not over ten figures, to form a loop which is secured by wire seizings. In this and its upper figures if more than ten places are necessary. Ne^r Tbeory of tbe Origin of Fetrolenm. loop, which is lined with leather to prevent chafiag, a spring The dimensions of the instrument are 13x5x7 inches,… … ancient periods, like the Silurian, not many thoroughly know the use and care of ma- HOUGHTON'S FIRE ESCAPE. organized beings could have existed. Hence chinery, the strength and adaptability of ma- Mendelejeff thinks that it is very improbable terials for the manufacture of appliances. If that…
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