Society of Glass Technology · [Sheffield] · leaf 633
the R-salt, but these were destroyed under the conditionsof the test for cobalt. V. D. 262. Tervalent Manganese. J. Meyer and R. Nerlich(Zeitsch. anorg. Chem., 1921, 116, 117).—A delicate method fordetection of manganese consisted in adding ammonia to the solution,collecting the precipitate,… … Fig. 147. IX.—Machinery for the Workingof Glass. 263. A Glassworkers Pneumatic Pipe. (Times Trade Supplement, 1922, Sept. 30th;see also Glasindustrie, 1922, 22, 175). — W.Lippold, of Dresden, has devised a blowpipein which the irregular blowing by mouth isreplaced by mechanical blowing. Fig.…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
