Show Alt Attitude Altitude tude and the time Blood Dr Joseph ol ut II the phys phys- laboratory of ot Cambridge mil roil mil I hue bus found that th tho the red pigment ot of It 1 the he blod Increases in as on one ascender ascend to lie IIa tells of ot an nn English scientist t. t the content ron con tent of ot whose blood was slightly slightly- below be be- low bit normal u II nt sea pen level Il Up lie to Cerro du lit PUllen Insco In the lime Andes lIUO feet tell above nho son sea level l. l Kour bour days litter Inter It had Increased more llama Hum 2 per con cent I Fourteen days later r It hull hud gone gune uj up more than thun 18 per cent nt |