The wheel within wheel, the circle within circle expand and ascend until the last circumferential line sweeps around all the world of created being, even taking in, upon the common radius, the highest and oldest of the angels. From the primrose peering from the hedge to the premier seraph wearing the coronet of his sublime companionship; from the lowest forms of vegetable existence to the loftiest reaches of moral nature this side of the Infinite, this everlasting law of co-working rules the ratio of progress and development. In all the concentric spheres strung on the radius measured by these extremes, there is the same co-acting of internal and external forces. And mind, of man or angel, guides and governs both. Not a flower that ever breathed on earth, not one that ever blushed in Eden, could open all its hidden treasures of beauty without the co-working of man's mind and taste. No animal that ever bowed its neck to his yoke, or gave him labor, milk or wool, could come to the full development of its latent vitalities and symmetries without the help of his thought and skill. The same law obtains in his own physical nature. Mind has made it what it is to-day, as compared with the wild features and habits of its aboriginal condition. Mind has worked for five thousand years upon its fellow- traveller through time, to fit it more and more fully for the companionship. It was delivered over to her charge naked, with its attributes and faculties as latent and dormant as those of the wild rose or dahlia. Through all the ages long, she has worked upon its development; educating its tastes; taming its appetites; refining its sensibilities; multiplying and softening its enjoyments; giving to every sense a new capacity and relish of delight; cultivating the ear for music, and ravishing it with the concord of sweet sounds; cultivating the eye to drink in the glorious beauty of the external world, then adding to natural sceneries ten thousand pictures of mountain, valley, river, man, angel, and scenes in human and heaven's history, painted by the thought-instructed hand; cultivating the palate to the most exquisite sensibilities, and exploring all the zones for luxuries to gratify them; cultivating the fine finger-nerves to such perception that they can feel the pulse of sleeping notes of music; cultivating the still finer organism that catches the subtle odors on the wing, and sends their separate or mingled breathings through every vein and muscle from head to foot.