umann, of Halle, has devised a simple and heated. The rods by which the dampers are operated easily constructed little apparatus for measuring the extend to the outside of the stove, within convenient bulk of a solid body without immersing the latter in reach. . This stove is economical in the use… … off attachment—illustrated in Fig. 3—in which the set- tremities of the latter are put in communication witha source of electricity. It is necessary to see that the tling drum has a blow-off pipe provided with a valve., To the drum are secured two 'pipes, furnished with wire adheres closely to the…
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