At the same time, their pictures betray that, during this generation, historical painting was throned on a summit whence it could dictate the æsthetic catechism. The historical picture represented a humanity that carried about with it the consciousness of its outward presence, draped itself in front of the glass, and made an artificial study of every gesture and every expression of emotion. _Genre_ painting followed, and rendered the true spirit of life, illustrating it histrionically, but without surprising it in its unconstrained working. And so trees, mountains, and clouds also were forced to lay aside the innocence of unconscious being and wrap themselves in the cloak of affectation. Simple reality in its quiet, delicate beauty, the homely "mood" of nature, touching the forms of landscape with the play of light and air, had nothing to tell an age overstrained by the heroics of history and the grimaces of _genre_ painting. A more powerful stimulus was necessary. So the landscapists also were forced to seek nature where she was histrionic and came forth in blustering magnificence; they were forced to send off brilliant pyrotechnics to fire out sun, moon, and stars in order to be heard, or, more literally, seen. Instruction or theatrical effect--the aim of historical painting--had also to be that of the landscape painter. And as railroads are cosmopolitan arrangements, he was in a position to satisfy both demands with promptitude. As historical painters in the chase of striking subjects directed their gaze to the farthest historical horizon, and the _genre_ painters sought to take their public captive principally through what was alien and strange, Oriental and Italian, the landscape painters, too, found their highest aim in the widest possible expansion of the geographical horizon. "Have these good people not been born anywhere in particular?" asked Courbet, when he contemplated the German landscapes in the Munich Exhibition of 1869. What would first strike the inhabitant of a Northern country in foreign lands was made the theme of the majority of the pictures. But as the historical painting, in illustrating all the great dramatic scenes from the Trojan War to the French Revolution, yielded at one time to a pædagogical doctrinaire tendency and at another to theatrical impassionedness, so landscape painting on its cosmopolitan excursions became partly a dry synopsis of famous regions, only justifiable as a memento of travel, partly a tricked-out piece of effect which, like everything obtrusive, soon lost its charm. Pictures of the first description which chiefly borrowed their motives from Alpine nature, so imposing in its impressiveness of form--grand masses of rock, glaciers, snow-fields, and abrupt precipices--only needed to have the fidelity of a portrait. Where that was given, the public, guided by the instinct for what is majestic and beautiful in nature, stood before them quite content, while Alpine