Show This Man Makes Real Diamonds j F Fak ak J i 4 7 b 3 tS Heres Here's a chance to clinch that engagement with a n diamond ring at last men meal You can get a real diamond in one carat size for a mere 5 and Pro Prof 1 Ralph McKee head hend of 01 the department of chemical engineering engineer engineer- ing at Columbia university is showing how his machine does the trick The diamonds are made by subjecting iron containing carbon silicon and phosphorus to terrific heat enormous pressure and slow cooling |