424 Scientific Intelligence. 
of nitrous acid (calculated as nitric acid). The former first added 
carbonate of potash to a litre of the water, then slowly evaporated toa 
normal ingredient of atmospheric waters. ‘tself 
is result, it was warrantable to infer that the atmosphere : 
contains no nitrate but only nitrite of ammonia. To examine the atmo 
sphere more directly, Bohlig passed 20 cubic feet of air slowly teen 
