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Show ing that platinum is too ewiliy, and carbon car-bon disintegrates in tho prewinee of nns-oiut nns-oiut oxygen and chlorine. Ho plaros the electnxitis in a Hhoot eishtopn inches U(p, two fwt wide and 200 toot long. Twenty-fivo pairs are connooted in BPries, and a preanure of 1.8 volts is used betvswx'n thein. Sir Henry Kotscoe hud entire control of tho expwinientiil works for about a month, and found that from 70 to 80 per cent, of the orgaiuo lrutt tor was precipitutod as a sludf. From tlte experiments on 20,000 (fidlom of sewaire it in estimated that to deal with 10,000,-000 10,000,-000 fraJlons in twenty-four hours at Sid-ford Sid-ford 400 indicated horse power will be necessary, as for each gallon .37 ampere hour is required. Experiments made durini? tho lecture on London sewage showed that a floocrdent pmripitate was formed within a few seconds. If sow-ai;o sow-ai;o kIiuIk'b be of any value as manure it phould lie economical to use that produced pro-duced by this process. New York Telegram. IF.lectrlcal Treatment uf Sewage. j A paper on "The Electrical Treat-month of Sewage" was read by Mr. W. Web-j ter, F. C. S., at a meeting of the Society; of Chemical Industry, in London. ThisJ gentleman has devoted some ton years. I to experiments on the problem, and I has carried ont some erperiments cat' I a n,rp;e scale with the sewageof Salford,, I which is of an exceptionally complex character, lie has succeeded in reducing ;f the albuminoid ammonia to .14 parts ' j per 100,000, thus leaving an effluent j j which may be turned into any stream or ' I over. He uses cast iron electrodes, find- j |