Meu- lease the lock. In one corner of the nut is secured one of such a main flue, provided with a heater and fire- lon. box, Fig. 2 being a plain view, and Fig. 3 a sectional end of a piece of spring wire, as shown in Fig. 1, the The absorbing grounds of Acheres have a surface of other end of the… … of various systems, it is, as well known, the one recom- locking limb away from the bolt, one key serving for MACDONALD'S PNEUMATIC VENTILATOR. mended by the late Mr. Durand-Claye that finally tri- use with any number of similar nut locks. umphed. It consists in purifying the sewage water by about…
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