Show value of cold freh air cold fresh air has special value because it stimulates all the functions of the body it quickens the heart and increases the number of red corpus cles in the blood A reduction ol 01 70 degrees in its temperature 1 the proportion ot oxygen in air one seventh this is why one teel bet ter in cold than in warm air the vital fires as well a farea in grate burn brighter in cold weather th whole tide ot life moves with greater activity when oxygen te not clenti tul enough to make the vital fire burn sufficiently to consume the fuel and waste of the body then much ol 01 the waste material la left behind in the form of imperfectly burned tub stances which may be called dunderi ot the body uric acid Is cinder |