| Show THE tile AIR WE breathe A full grown man spoils more thana gallon of air every minute by his respiration this amounts cubic feet flet or nearly 58 bushel sacks fui ful in 24 hours houra ifa if a man could be made to breathe for 24 hours in a room seven feet square all ways which was so completely closed up everywhere every where that no change of air could take place the entire quantity of air would at the end of the 84 24 hours have been changed into the condition of air just expelled from the lungs that is it would atwould have in it parts of carbonic acid and parts of oxygen two thousand instead of one part ft carbonic acid and parts of oxygen to the two thousand which ia is the case casp with pure air it would also be laden wit with I 1 i the peculiar putrefying putrefy ing exhalation of the breath breathe humar human beings cannot continue to breathe air that contains only parts en and that has parts of carbonic acid to the two thousand besides sides being loaded with putre dying exhalations exha lations on this account a man could not tive live live for 24 4 hours shu shut t up completely in a room seven feet square all ways ile lie would die long before that time poisoned by the pro ducts 0 of his own breath |
