dors, and that we may window are necessarily washed, and for this reason the glass, mica valves, opercula, etc. In England, where breathe therein as in the open air. So the fundamental air that traverses themdoesnot become charged withany much attention has been paid to this subject for a… … ance, and possesses the same inconveniences as those just mentioned. Figs. 3 and 4.-EFFECTS OF BLOWING AIB THROUGH A Figs. 1 and 2.-EFFECTS OF AIB BLOWN THBOUGH CYL- Prof. EmilTrelat, of the Conservatory of Arts and INDBICAL AND CONICAL APEBTUBES. CONICAL AFEBTUBE IN BOTH DIRECTIONS. Trades, has…
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