Show the mystery of petroleum at a recent meeting of 0 a scientific society at washington one of the members in discussing the present problems in earth physics invited attention to a mystery which will assume greater importance as the accessible supply 0 of coal diminishes tile the origin of petroleum tr such vast accumulations of oil as exist in the caspian and caucasus regions seera seem incompatible with the hypothesis poth po thesis ests that petroleum originates front from animal and vegetable remains eft suggested thit hit the source it f the oil is the decomposition of iron carbins in the terrestrial crust but bat ills hypothesis has not been general accept it I 1 the origin la Is not animal or vegetable then it Is thought jhb supply is voir veir likely inexhaustible |