the box, the hand will always return to the only position the platinum weight, of flat segmental form. This is sup- are to be found in most laboratories. The chloride of cal- in which it can be in equilibrium with the weight. ported by the arm, J, Fig. 7, which is fixed on one of the M. Robert has… … the disk, O (see detail in Fig. 3). Q is a tower and on the disks of wire gauze, al- THE AMMONIA SODA PROCESS. pinion, with a sleeve adjusted for friction on though the liquid remains turbid for some the outer enlargement of the axis, N, and en- time. The chemical reaction is as follows: gaging…
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