[ON THE CONTENT OF INORGANIC PHOSPHORUS AND NITROGEN COMPOUNDS IN SNOW, ALSO OF ORGANIC SUBSTANCE, AND ITS HYGIENIC SIGNIFICANCE  FOR AIR AND WATER].
D000397:Air Pollution; D006920:Hygiene; D009584:Nitrogen; D017672:Nitrogen Compounds; D010758:Phosphorus; D012914:Snow; D014867:Water; D014876:Water Pollution
D017672:Nitrogen Compounds; D014867:Water; D010758:Phosphorus; D009584:Nitrogen
AIR POLLUTION; HYGIENE; NITROGEN; PHOSPHORUS; WATER POLLUTION
UBER DEN GEHALT DES SCHNEES AN ANORGANISCHEM PHOSPHOR UND STICKSTOFFVERBINDUNGEN,   FERNER AN ORGANISCHER SUBSTANZ, UND SEINE HYGIENISCHE BEDEUTUNG FUER LUFT UND WASSER.