more humid than that of the outer air, and the tings are necessary for dealing with diseased areas of current into radiant energy with a difference of poten- water vapor figure varies about as the carbonic acid. considerable dimensions. Besides, the large quantum As to the temperatures, they are… … four-fifths of the observed during the whole compass of night from 1 to 5 ultra-violet light which is.transmitted for any consid- o’clock A. M., is found to be.48 liters per 100 cubic met- ultra-violet rays is not only an irksome factor in this ers of air. From 4 to10 o’clock P. M. it is 108…
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