rever. In order to prevent present more than six hundred wells in operation in often used. such accidents (which occur almost daily), Mr. C. H. the Baku region, where, in 1873, there were but a few Mr. Urquhardt, engineer of the Gratzi-Tsaristsin Jacot, of the firm of Jacot, Juillerat & Co., 37… … | greater depth. The yield of the wells is very JACOT’S SAFETY CHECK FOR MUSICAL BOXES, variable by reason of the great irregularity of Fig. 2, PETROLEUM INJECTOR. herewith illustrated, by which these accidents will be the folds of the calcareous strata, somewells be- impossible, for as soon as the…
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