Oil/canvas, 114,5 x 93 cm, lo. le. sign. Ad. Schweitzer as well as indistinctly dat., probably 82. - German landscape painter. S. studied at the Düsseldorf academy under O. Achenbach. He served the army in the Franco-Prussian war. Thereafter he continued his studies in Düssedorf under E. Dücker. He travelled Germany, Belgium a. France, but also Norway.