No. 151. 'An Autumn Evening'--Regis Gignoux, N. A. This picture does not satisfy us nearly so fully as others we have seen by the same artist. The general effect strikes us as somewhat artificial, the light does not seem to fall clearly from the sky, but as if through prisms or tinted glass. We have seen the inside of a shell, or the edge of a white cloud turned toward the sun, glittering with similar hues, very beautiful for a small object, but wanting in dignity and repose for an entire landscape. We remember with great pleasure Gignoux's 'Autumn in Virginia,' and his painting of 'Niagara by Moonlight' gave us a far more majestic impression of the great cataract than the famous day representation by Church. As we gazed, we called to mind a certain night when the moon stood full in the heavens, vivid lunar bows played about our feet, and, mounting the tower, we looked down into the apparently bottomless abyss, dark with clouds of mist, seething, foaming, and thundering. We shuddered, and hastened down the narrow stairway, feeling as if all nature must speedily be drawn into the terrible vortex, and we become a mere atom amid chaos. The picture caused us a shivering thrill, and we acknowledged the power of the artist. No. 90. 'Mansfield Mountain, Sunset'--S. R. Gifford, N. A. A glorious tale, gloriously told! 'The heavens show forth the glory of God, and the firmament declareth the work of his hands. Day to day uttereth speech, and night to night showeth knowledge. * * * He hath set his tabernacle in the sun; and he * * * hath rejoiced as a giant to run the way: His going out is from the end of heaven, and his circuit even to the end thereof: and there is no one that can hide himself from his heat.' This artist seems literally to have dipped his brush in light, pure light. We remember a juvenile book, entitled, 'A Trap to catch a Sunbeam;' such a trap must Gifford possess; he surely keeps tubes filled with real rays wherewith to flood the canvas and transfigure the simplest subject. Here we have a mountain, a lake, some sky, clouds, and a setting sun--but what an admirable combination! The picture seems fairly to illumine that part of the gallery in which it is placed. Had the artist lived in the olden time, he might have been feloniously made way with for his secret, but the present age seems more generous, and his fellow workers delight to praise and honor his genius. We find from the same hand 'Kauterskill Clove' (No. 15)--a flood of golden beams poured upon a mountain glen, with rifted sides, autumn foliage, and a tiny stream; a coming storm obscures but does not hide the distant hills. A bold delineation--but very beautiful, and true to the character of the scenery it represents. There are also a reminiscence of the present war ('Baltimore, 1862--Twilight,' No. 409), and one of foreign travel ('Como,' No. 385), equally suggestive of--not paint--but real, palpitating atmosphere.