_To the animal Kingdom._--In the animal kingdom, this invisible spiritual principle, the energy that lies hidden under all forms of animate and organized substance, becomes yet more strongly and obviously developed. The approach is nearer, and the appeal is more direct, to our own spiritual nature. We perceive signs, not to be mistaken, of intelligence and of feeling; passion betrays itself, love, hate, fear, the very principles of our own spiritual being, the very image of our own higher nature. Beauty and deformity are now more strongly marked than in the lower degrees of the scale of being. _To Man._--In man we reach the highest stage of animal existence with which we are conversant, the highest degree of life, intelligence, soul--the being in whom the spiritual shines forth most clearly through the material veil--and, shall we not say also, the being most beautiful of all? The highest style of beauty to be found in nature pertains to the human form, as animated and lighted up by the intelligence within. It is the expression of the soul that constitutes this superior beauty. It is that which looks out at the eye which sits in calm majesty on the brow, lurks in the lip, smiles on the cheek, is set forth in the chiselled lines and features of the countenance, in the general contour of figure and form, and the particular shading and expression of the several parts, in the movement, and gesture, and tone; it is this looking out of the invisible spirit that dwells within, through the portals of the visible, this manifestation of the higher nature, that we admire and love; this constitutes to us the beauty of our species. Hence it is that certain features, not in themselves, perhaps, particularly attractive, wanting, it may be, in certain regularity of outline, or in certain delicacy and softness, are still invested with a peculiar charm and radiance of beauty from their peculiar expressiveness and animation. The light of genius, or the superior glow of sympathy, and a noble heart, play upon those plain, and, it may be, homely features, and light them up with a brilliant and regal beauty. Those, as every artist knows, are precisely the features most difficult to portray. The expression changes with the instant. The beauty flashes, and is gone, or gives place to a still higher beauty, as the light that plays in fitful corruscations along the northern sky, coming and going, but never still.