Show num tim substitutes tile great increase tn in the value of f during the lost two decades tins led many investigators to seek it appears that the search has been partly successful platinum clad nickel steel waro in in enri descent lumps lamps wires of nickel nl loys lois are now making the lio cheaper grades of artif lelal teeth asbestos asbe stoa threads are now taking tile tho place plaice ot of platinum wires in gas mantles and used fused quartz ware line come came into general uso use in laboratories in tho the place of platinum utensils yet tho the introduction of these substitutes lina has not affected the price of platinum tile tha demand for the metal beccia sten aten dlly to have increased in ili spite of them new york world |