e engraving shows three The Lightning, one of the earliest torpedo boats supplied forms of this filling. glass jar, in the bottom of which there are two holes. By this arrangement the sulphate *of copper can easily be re- by Messrs. Thorneycroft to the British service, has been In Fig. 1 the struts… … If the battery is in good condition, the , old conditions. The horse power de- liquid in the jar is lower than that with veloped, however, was also less, and as NEW FIREPROOF FLOOR AND CEILING. the zinc, Ihus showing that the solution this is supposed to be due partly to the of sulphate of copper…
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