ons are directed together over small pulleys at d (Fig. 2). The directing which the lower points face the upper ones can be varied, so ■ ■» < » as to direct the arc to one side or the other. The wooden force is supplied by a lead weight or counterpoise, w, of , There is no simpler or better remedy… … Action of \Fater and Salt Solutions on Zinc. The results of a series of experiments made upon this sub- ject by Snyders may be given briefly as follows: s' 1. Zinc decomposes salt solutions, concentrated as well as dilute, without access of air or oxygen. Hydrogen is libe- rated, and oxide of zinc…
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