But Catesby watched in vain for the abstraction of any treasonable contents in the engine, which the Duke of Gloucester had so shrewdly suspected. The truth must be told. Adam had entirely forgotten that in the intricacies of his mechanical lurked the papers that might overthrow a throne! Magnificent Incarnation was he (in that oblivion) of Science itself, which cares not a jot for men and nations, in their ephemeral existences; which only remembers THINGS,—things that endure for ages; and in its stupendous calculations loses sight of the unit of a generation! No, he had thoroughly forgotten Henry, Edward, his own limbs and life,—not only York and Lancaster, but Adam Warner and the rack. Grand in his forgetfulness, he stood before the tiger and the tiger-cat,—Edward and—Richard,—A Pure Thought, a Man's Soul; Science fearless in the presence of Cruelty, Tyranny, Craft, and Power.
In truth, now that Adam was thoroughly in his own sphere, was in the domain of which he was king, and those beings in velvet and ermine were but as ignorant savages admitted to the frontier of his realm, his form seemed to dilate into a majesty the beholders had not before recognized; and even the lazy Edward muttered involuntarily, "By my halidame, the man has a noble presence!"
"I am prepared now, sire," said Adam, loftily, "to show to my king and to this court, that, unnoticed and obscure, in study and retreat, often live those men whom kings may be proud to call their subjects. Will it please you, my lords, this way!" and he motioned so commandingly to the room in which he had left the Eureka, that his audience rose by a common impulse, and in another minute stood grouped round the model in the adjoining chamber. This really wonderful invention—so wonderful, indeed, that it will surpass the faith of those who do not pause to consider what vast forestallments of modern science have been made and lost in the darkness of ages not fitted to receive them—was, doubtless, in many important details not yet adapted for the practical uses to which Adam designed its application. But as a mere model, as a marvellous essay, for the suggestion of gigantic results, it was, perhaps, to the full as effective as the ingenuity of a mechanic of our own day could construct. It is true that it was crowded with unnecessary cylinders, slides, cocks, and wheals—hideous and clumsy to the eye—but through this intricacy the great simple design accomplished its main object. It contrived to show what force and skill man can obtain from the alliance of nature; the more clearly, inasmuch as the mechanism affixed to it, still more ingenious than itself, was well calculated to illustrate practically one of the many uses to which the principle was destined to be applied.
Adam had not yet fathomed the secret by which to supply the miniature cylinder with sufficient steam for any prolonged effect,—the great truth of latent heat was unknown to him; but he had contrived to regulate the supply of water so as to make the engine discharge its duties sufficiently for the satisfaction of curiosity and the explanation of its objects. And now this strange thing of iron was in full life. From its serpent chimney issued the thick rapid smoke, and the groan of its travail was heard within.
"And what propose you to yourself and to the kingdom in all this, Master Adam?" asked Edward, curiously bending his tall person over the tortured iron.
"I propose to make Nature the labourer of man," answered Warner. "When I was a child of some eight years old, I observed that water swelleth into vapour when fire is applied to it. Twelve years afterwards, at the age of twenty, I observed that while undergoing this change it exerts a mighty mechanical force. At twenty-five, constantly musing, I said, 'Why should not that force become subject to man's art?' I then began the first rude model, of which this is the descendant. I noticed that the vapour so produced is elastic,— that is, that as it expands, it presses against what opposes it; it has a force applicable everywhere force is needed by man's labour. Behold a second agency of gigantic resources! And then, still studying this, I perceived that the vapour thus produced can be reconverted into water, shrinking necessarily, while so retransformed, from the space it filled as vapour, and leaving that space a vacuum. But Nature abhors a vacuum; produce a vacuum, and the bodies that surround rush into it. Thus, the vapour again, while changing back into water, becomes also a force,—our agent. And all the while these truths were shaping themselves to my mind, I was devising and improving also the material form by which I might render them useful to man; so at last, out of these truths, arose this invention!"
"Pardie," said Edward, with the haste natural to royalty, "what in common there can be between thy jargon of smoke and water and this huge ugliness of iron passeth all understanding. But spare us thy speeches, and on to thy puppet-show."
Adam stared a moment at the king in the surprise that one full of his subject feels when he sees it impossible to make another understand it, sighed, shook his head, and prepared to begin.
"Observe," he said, "that there is no juggling, no deceit. I will place in this deposit this small lump of brass—would the size of this toy would admit of larger experiment! I will then pray ye to note, as I open door after door, how the metal passes through various changes, all operated by this one agency of vapour. Heed and attend. And if the crowning work please thee, think, great king, what such an agency upon the large scale would be to thee; think how it would multiply all arts and lessen all labour; think that thou hast, in this, achieved for a whole people the true philosopher's stone. Now note!"
He placed the rough ore in its receptacle, and suddenly it seemed seized by a vice within, and vanished. He proceeded then, while dexterously attending to the complex movements, to open door after door, to show the astonished spectators the rapid transitions the metal underwent, and suddenly, in the midst of his pride, he stopped short, for, like a lightning-flash, came across his mind the remembrance of the fatal papers. Within the next door he was to open, they lay concealed. His change of countenance did not escape Richard, and he noted the door which Adam forbore to open, as the student hurriedly, and with some presence of mind, passed to the next, in which the metal was shortly to appear.