. The railroad and engineering journal . k. It can be said ofplumbago as the Irishnian said of whiskey : None is bad,but some is better than others. One kind of plumbago is bet-ter applied by the shake-bag ; and, if the brush is used, anotherkind will prove better. One preparation of plumbago will sleek, another will not. Another kind is more useful forlight castings, another kind for heavier work. Good plumbago will stand the heat, and will neither burn norrun before the molten metal. A wash of plumbago for cores, loam work and dry sandcastings is indispensable. The Dixon Crucible Company, of
. The railroad and engineering journal . k. It can be said ofplumbago as the Irishnian said of whiskey : None is bad,but some is better than others. One kind of plumbago is bet-ter applied by the shake-bag ; and, if the brush is used, anotherkind will prove better. One preparation of plumbago will sleek, another will not. Another kind is more useful forlight castings, another kind for heavier work. Good plumbago will stand the heat, and will neither burn norrun before the molten metal. A wash of plumbago for cores, loam work and dry sandcastings is indispensable. The Dixon Crucible Company, of Jersey City, N. J., have made a patient study of the subject, and being the only minersof plumbago who afterward prepare it for its many uses, theycan give advice on the subject not elsewhere obtainable. Thisis contained in a little book, which can be had from them onapplication. Civil Service Examination for Draftsmen. An examination will be held by the Civil Service Commissionat Washington, D. C, commencing at 9 , May 12, to fill. ^^:XC^^^^CC^ ^m. JO. &
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
