. Electric railway journal . rightquality of Tar Acids to (1) increase its penetrating powerby combining with the Lignin of the wood, (2) to destroythe bacteria that produce decay and thus thoroughly steril-ize the wood, and (3) to form the asphaltic bases in thewood that makes the results permanent. Most preserva-tives have little or no Tar Acids, but some have added themsince Conservo has demonstrated their value. (See JournalInd. & Eng. Chemistry, Vol. 4, No. 4.) Showing further the limpid, penetrating quality of is that cold molasses quality that prevents theheavy carbol
. Electric railway journal . rightquality of Tar Acids to (1) increase its penetrating powerby combining with the Lignin of the wood, (2) to destroythe bacteria that produce decay and thus thoroughly steril-ize the wood, and (3) to form the asphaltic bases in thewood that makes the results permanent. Most preserva-tives have little or no Tar Acids, but some have added themsince Conservo has demonstrated their value. (See JournalInd. & Eng. Chemistry, Vol. 4, No. 4.) Showing further the limpid, penetrating quality of is that cold molasses quality that prevents theheavy carbolineums and other similar preservatives frompenetrating. They are so thick (from two to five timesas viscous as Conserve) that they remain on the surface—until washed off by the first rains. .003%, —► Further proving that there is no foreign or waste matter inConservo. Price 40c per gallon f. o. b. Boston Samuel Cabot, Inc., Manufacturing Chemists, Boston NEW YORK CHICAGO 14 ELECTRIC RAILWAY JOURNAL [January 2, 1915. Fixing Up Hearts Dr. Carrel of the Rockefeller Institute Medical Researchhas announced that we can soon expect to have our faultyhearts repaired with knife, scissors and needle. Yet tradition says youll die if the heart is touched—andno doubt the family physician says the same thing. Rut the specialist accomplishes it successfully. Theres almost no limit to the progress possible underspecialized intelligently-directed study. That is why with us brush engineering is an inseparablepart of brush making and selling. It is a specialized service to assure the right prescriptionof Morganite or Battersea brushes. Proper commutation is sometimes the result of a happychoice of brushes—it is always the reflection of soundengineering. THE MORGAN CRUCIBLE CO., LTD. TRADE Factory 120 LIBERTY STREET Brooklyn, N. Y. NEW YORK CITY MARK LEWIS-ROTH CO., \ Agents { ELECTRICAL ENGINEERING & MFG. CO. 312 Denckla Bldfi., Philadelphia I I First National Bank Building, Pittsburgh
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