We have dwelt thus lengthily upon this primitive and apparently less important branch of Landscape Art for several reasons: from a conviction that its importance is, and is only apparently less; from the fact that from it have been derived all other classes of landscape; and because a comprehension of its scope and purpose aids more than any other agency in understanding those of the pure and simple Landscape Art. We have seen Nature ever ready with moods so related to the soul that no ideal worthy of Art might be conceived beyond the range of her sympathies. Even to that event involving all the intensity of human thought and feeling, the last refinement of all spiritual emotion, and a sense of mysteries more sublime than the creation of worlds,--even to the Crucifixion,--Nature gathered herself, as the only possible sign, the only expression for men, then and forever, of the awful significance. The joyfulness of festivals, the pomp of processions, the sublimity of great martyrdoms, the sorrow of defeats, the peace of holiness, the innocence and sweetness of childhood, the hope of manhood, and the retrospection of old age, when represented upon the canvas, find in her forms and colors endless refrain of response. This truth, that Nature is capable of such cooperation with the human, that she confines herself to no country or continent, and that her expressions are not relative, depending upon the suggestiveness of the human action to which they correspond, but are positive and under the rule of the immutable, enables the artist to evolve the first great class of simple landscape-painting.