Show many uses for old bones the millions of bones that are thrown away every year sear help to make a nourishing flourishing industry their by prod nets and uses are practically endless and there Is no waste wast e bones go through many stages first they aro boiled until all the fat Is efti extracted acted this Is made into glycerine and certain types of lubricants shin and marrow bones are used for making handles tile the rest are ground into fine powder r in vast mills ills and have an infinite n number uin of uses A certain amount of tills this powder Is used to make bone manure and bone meal for farmers it is extremely valuable sugar salt ait and other it er refineries utilize bones in some of their refining processes bones are also used for case caseharden hardening harden ing cast steel tit bits magazine |