Illinois Society of Architects · Chicago · leaf 222
This assumes that C02 is not the only-impurity in the air, but rather is an indi-cator of the presence of other impuritiesas well. In other words, an artificial mix-ture of twelve parts of C02 in 10,000 wouldnot contain the same amount of impuritiesand would, therefore, not represent the samedegree…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
