and her progress is certain and accelerating. Reason is written on her brow; she appeals to the universal gift, and denies the authoritative dictations of fallible genius, as much as a moral equality disallows the divine right of kings. Speculators among stars, speculators among sounds and colors, are the skirmishers in front of an intellectual post, whose tread reverberates but little in their rear. Accoutred with a few empiric facts and inductive minds, they aspire to beautiful and stable theories, whence they may descend, by deductive steps, accurate even to mathematical absoluteness, to the very arcana of what has been the inexplicable. To them the true, the beautiful, must be facts, defined, realized, and vigorously analyzed. Visible embodiments of an incomprehensible grace must be disintegrated, and the thinnest essences escape not the analytical rack whereon they confess the causal entity of their composition. 'Broad-browed genius' may toss his locks in the studio redolent of art; his eye may light, and his nervous fingers print the grand creation on the canvas. The divine afflatus is in his nostrils; it is his spirit, and his picture is the reflex of his soul. But keen-eyed Science lays a shadowy hand upon the 'holy coloring,' and says: 'Truly, the harmony is beautiful; it has pleased a sympathetic instinct from the first. Yet, from the first, my laws have been upon it—inexorable laws, which answer to the mind as instinct echoes to the soul.'
The august simile of the philosopher, who likened the world to a vast animal, is appearing each day as too real for poetry. The ocean lungs pulse a gigantic breath at every tide, her continental limbs vibrate with light and electricity, her Cyclopean fires burn within, and her atmosphere, ever giving, ever receiving, subserves the stupendous equilibrium, and betrays the universal motion. Motion is material life; from the molecular quiverings in the crystal diamond, to the light vibrations of a meridian sun—from the half-smothered sound of a whispered love, to the whirl of the uttermost orb in space, there is life in moving matter, as perfect in particulars, and as magnificent in range, as the animation which swells the tiny lung of the polyp, or vitalizes the uncouth python floundering in the saurian slime of a half-cooled planet.
When a polar continent heaves from the bosom of the deep, or when the inquiring eye rests upon the serrated rock, the antique victim of some drift-dispersing glacier, the mind perceives the effects and recognizes the existence of nature's omnipotent muscles, and their appalling power.
But that adventurer who chases the chain of necessity to the sources of this grand instability, is merged at once in a haze of speculations, beautiful as sunlight through morning mists, but uncertain as the veriest chimeras. While beyond the idea of comprehensive motion the colossal symmetry of Truth expands in ultimate outlines, her features are shrouded, but in such an attractive clare-obscure of inviting analogies and semi-satisfying glimpses, that the temptation to guess at the ideal face almost overpowers the desire to kiss the real and shining feet below. Unfortunately, there is the domain of the myths and immaterials, there is the home of the law and the force, there dwell the Odyles, the electricities, the magnetisms, and affinities, and there the speculative Æneas pursues shadows more fleeting than the Stygian ghosts, and the grasp of the metaphysician closes on shapes whose embrace is vacancy. The bark that ploughs within this mystic expanse, sheds from its cleaving keel but coruscations of phosphorescent sparkles, which glimmer and quench in a gloom that Egyptian seers never penetrated, and modern guessers cannot conjecture through. There is, indeed, 'oak and triple brass' upon his breast who steeps his lips in the chalice of the Rosicrucian, and the doom of Prometheus is the fabled defeat which is waiting for the wanderer in those opaque spaces. While we warily, therefore, tread not upon the ground whose trespass brought the vulture of unfilled desire, the craving void for visionary lore upon the heaven-born, earth-punished speculator, we can still find flowery paths and full fruition, in meadows wherein the light of reason requires no support from the ignes fatui of imagination; meadows after all so broad, that did not metaphysics 'teach man his tether,' they would seem illimitable. The book of nature is not spread before us, turning leaf after leaf at every sunrise, with new delineations on every page, to be stared at with vacant inanity, or criticized with imbecile verbosity. The rivulet does not tinkle and the sky does not look blue that people may feed the ear alone with the one, or satisfy the eye alone with the other; the nerves which carry the sensation to the brain, flutter with the news, and knock at the house of mind for explanation. We do not anticipate being hurried into any extravaganza about the rural felicity of green trees, clinking cowbells, cane chairs, and cigars, when we recall to the trainer of surburban vines the harmony, the analogy, the relationship, which he must have observed between sounds and colors in nature's album of melodies.
When, at evening, the zenith blue melts away toward the horizon in dreamy violet, and the retreating sun leaves limber shafts of orange light, like Parthian arrows, among the green branches of the elms, what sounds can charm the ear like the soft chirrup of the cricket, the homely drone of the hive-seeking bee, and the cool rustle of the breeze through the tops of the spring-sodden water grasses? How fondly the mind blends the evening colors and the incipient voices of the night! 'Oh,' says the metaphysician, 'this is association: just so a strain of music reminds you of a fine passage in a book you have read, or a beautiful tone in a picture you have seen; just so the Ranz des Vaches bears the exile to the timber house, with shady leaves, corbelled and strut-supported, whose very weakness appeals to the avalanche that shakes an icicly beard in monition from the impeding crags.'
Well, let association play her part in some cases; when a habit has necessitated the recurrence of two distinct ideas together, they will certainly be associated at times when the habit is gone; but suppose the analogy is felt when the ideas have never before been in juxtaposition, or when there has even been no sensation at all to generate one of the notions. How, for instance, did the sightless imaginer ever conceive that red must be like the sound of the trumpet? Simply because the analogy between color and music is deeper than the idea of either, more absolute than association could make it; because certain tints are calculated to produce exactly similar impressions on the eye that certain sounds do upon the ear; or, to use a mathematical turn of expression, because some color [Greek: x] is to the eye as some sound [Greek: x] is to the ear.
That this mathematical turn of expression is no vagary, but perfectly germane to the subject, and accurate in application, we propose to prove to those who love coincidences and analogies sufficiently to fish them out of a little dilute science.
Light and sound are the daughters of motion. Color and music, the ethereal and aërial offspring of this ancestry, born with the world, fostered in Biblical times, expanded in China and Egypt, living on the painted jar, and breathing in the oaten reed, deified in Greece, and analyzed to-day, are natural cousins at the least, and they have come from the spacious home of their progenitor, upon our dusky and silent sphere, like Peace and Goodwill, with hands bound in an oath and contract never to part. We will spare a dissertation on chaos; we will not speak of matter and inertia; but as our greatest and purest fountain of light is the sun, we may be allowed a modest exposition of his philosophical state, as a granite gate to the garden beyond. Ninety-five millions of miles to the north, east, south, or west of us, up or down, as the case may be, stands the molten centre of our system—an orb, whose atoms, turbulent with electricity, gravity, or whatever mechanists please to call the attraction of particle for particle, are forever urging to its centre, forever meeting with repulsions when they slide within the forbidden limits of molecular exclusiveness, and eternally vibrating with a quake and quiver which lights and heats the worlds around. In other words, this agitation is one that, transmitted to an ethereal medium, produces therein corresponding vibrations or waves, which are light and heat.
As sound is the symmetrical aërial motion, if our atmosphere embraced our sun, and extended throughout space, we should perhaps hear in the ambient the fundamental chord, resolvable into the diatonic scale—as we look upon the beam of white which the prism decomposes into the solar spectrum, and in the ghostly watches of the night, we might recognize the 'music of the spheres' as the planets rushed around their airy orbits, with a noise like the 'noise of many waters,' no longer a poetic illusion, but a harmonic fact.
Light, whether white or colored, is transmitted through ether in waves of measurable length: each atom of the medium, when disturbed, moves around its place of rest in an orbit of variable dimension
