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Show SKIN BREATHING ng things are constantly throwlnt: off materials which, unless removed, will I. E net as poisons Crops must be rotated, because the soil conditions produced by n one crop prevents the deT-;opmr t tf the same kind In Immediate jucrr-slon. jucrr-slon. The (mf thine Is true of the huimn ', body. It is constantly throwing of. through the skin and lungs, material I which must be removed In order that Vt body BMj maintain its vigor and health The quant y of air we breathe and that envelops our bodies determines In larv measure our physical. Intellectual nm emotional conditions and activities. The . best air for the body Is that which la cool, dry and kept constantly In motion : When sleeping, th- nlr should ba. k' pi I in circulation as much as possible, although al-though one should not sleep in a draft Fetlruc is a poison which is thrown off I by sleep and the sleep, to do what Is reuired ofq it should le quiet anu restful. |