ying tubes, the fasten the trace, the latter can be turned in the slot in the di- American Association for the Advancement of Science. This heat of which quickly absorbs the moisture remaining upon rection of the arrow, until it is stopped by the projection B. the contents of the cylinder. Exhaust… … from its convenience and simplicity, doubtless find ready ap- condensation. When feathers, hair, and like substances are The trace can then be easily slipped on, and the button re- plication for innumerable purposes. It is an ordinary screw to be acted upon, the bars, L, are removed, and the…
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