Show petroleum in russia A peculiar fact in respect to petroleum is the difference of conditions under which that oil occurs in russia and america in the former it is found in strata of the tertiary period usually a formation resembling a quicksand and at depths of only a few hundred feet in our own country it occurs at great depths in the older compact sandstones and lime stones american oil yields a very large proportion say about 70 per cent of illuminating oil exactly suited suite d for combustion in our ordinary lamps the russian oil produces far less of such oil and a larger proportion of high class lubricating oil the russian illuminating oil also requires to be burned in a modified form of lamp with a more perfect draugh tin order to overcome its tendency to produce a smoky rame flame and it is largely this fact which has prevented the consumption of russian 3 an oil for light abroad |