Show I CANNED CANNED NNED BLOOD USED TO CURE SOLDIERS Chicago June It 7 7 It is no lon longer r necessary for the donor of or blood and tho the patient who is to it to be brought together according to tho the Popular Mechanics Magazine Human bloo blood V has hns been discovered ma may be bc I preserved for several weeks weeks weeks-a a month r represents about the limit of ut time time and and use used when needed War r surgeons cons found for instance that tho the improvement improvement improvement improve improve- ment of patients Wa was equally marl marked ed when they were supplied with blood that had been kept three weeks weeks- or more as when fresh Cresh blood was w used The Importance o of the tho latest technical change o In this operation Is almost obvious ob ob- ob- ob It lies chiefly In the advantage of h a 1 stock o of blood at hand han at atall atall atall all times s for or the tho emergencies that constantly constantly con con- tan tl arise |