Show FIGURES ON AGE OF EARTH ARE REVISED billion and a half years Is new estimate austin texas geologists generally have accepted the comparatively re cent calculation of physicists that the use of alie world Is approximately sears according to dr professor emeritus of paleontology at lale university who Is giving a special course in ecology at the university of lexas this term As for the age of the earth our conceptions have been greatly altered by the work of the physicists during the last twenty bears doctor erts ild the best calculation of the baith s age comes from the rate of als integration ot radium bearing minerals and on that basis the age of the earth now Is estimated to be not less than 1500 sears such a vast length of time Is beyond our concep alon A century ago it was almost verbally held that the earth was about years old through the rate of disintegration of radium bear ing minerals all of our older calca alons have been greatly altered until this discovery was made and worked out geologists the world over held that the age of the earth was of the orde about vears basis of calculation this calculation was based on the amount of salt in solution in the oceans and the present rate of new supplies yielded by the rivers flowing ahe rivers today however anre yielding a greater annual average of tills salt than was the rate during the geologic ages and geologists later began to think of the age of the earth as something III e doctor said that recently it vaa v aa widely believed that oil prodoc alon would play out or at least be vastly reduced during he next 25 vears but that many noted geologists no fear of an immediate ex haust lon of this natural wealth A few years ago pi evictions were made by the best geologists that alie peak of production product iop biad been reached he continued As yet however no decline has set in but of course soon er or later the supply of liquid pe will be exhausted lvin so there are vist amounts of sanles hold ing oils which can be extracted through distillation more modern methods hive been adopted recently li which quantity of oil Is outlined from a given field than formerly he said in old wells which were be exhausted have been revived bv water or air into the old gioles or into newly driven ones thus forcing up more of the oil reserves it Is widely held that only about 25 per rent of alie oil of a given field Is so fr brought to the aup pose that by the adoption of tin proved methods this could be in creased to 50 cpr cent it would mean an enormous addition to production old theories discarded with the progress of scientific research and discoveries some of the old theories as to ohp origin of petroleum have been placed in alie discard one of these Is the old belief eliat the nat ural oils are of volcanic origin it Is now well known that petroleum Is the end of once living things and chiefly of marine plants although bome of it Is also of origin doctor fechuch ert evinced much in in the that his come to him of the possible potash wealth of texas 1 I understand that in the oil ex in the western part of texas potash salts have been found over an extensive area hr bald if potash Is present in workable quin titles it means a tremendous to the state even long after the oil Is gone not only Is potash in great demaid as a but enormous quantities of it are used in the cheal cal industries nowhere in north america are the permian beds better 0 developed than in the semi arid re alons glons of western texis and nowhere anre there greater supplies of gypsum and salts |