Show FREAKS and ODDITIES IN IN SCIENCE NEWS NEWS- J When Greeks minted gold coin they used goodU good U gold Gold coins corns dug up at Sardis' Sardis by a Princeton Princeton Princeton Prince Prince- ton university expedition assayed per cent pure gold and 16 per cent sliver silver This is one of the angles of chemical research into problems One of the things discovered about the Greek coins necessitates a change in in the commonly accepted idea of how the ancients made their money It now appears that the Greeks were I fa familiar fa- fa a- a millar with the art of heating and working cold-working metals so as to secure a n homogeneous product The coins were then struck without melting and casting castIng cast- cast Ing lug the metaL a a a aJ J Two University of Washington not U fear lear a shortage of gasoline and oil when the world supply of petroleum Is exhausted for for- they have found that as much as 80 to 90 per cent of coal can be converted into oil and other soluble products In Germany where coal Is more plentiful ful than petroleum gasoline is already made from the solid scUd fuel by the tho hydrogenation process The present low cost of petroleum in this country makes the application of such a a process here s seem em re re- re mote |