is one which Newton would have to go to school to learn; our “Staticks, Mechanicks, Magneticks, Chymicks, and Natural Experiments” constitute a mass of physical and chemical knowledge, a glimpse at which would compensate Galileo [32] for the doings of a score of inquisitorial cardinals; our “Physick” and “Anatomy” have embraced such infinite varieties of beings, have laid open such new worlds in time and space, have grappled, not unsuccessfully, with such complex problems, that the eyes of Vesalius [33] and of Harvey [34] might be dazzled by the sight of the tree that has grown out of their grain of mustard seed.

The fact is perhaps rather too much, than too little, forced upon one’s notice, nowadays, that all this marvellous intellectual growth has a no less wonderful expression in practical life; and that, in this respect, if in no other, the movement symbolised by the progress of the Royal Society stands without a parallel in the history of mankind.

A series of volumes as bulky as the “Transactions of the Royal Society” might possibly be filled with the subtle speculations [35] of the Schoolmen;[36] not improbably, the obtaining a mastery over the products of mediaeval thought might necessitate an even greater expenditure of time and of energy than the acquirement of the “New Philosophy”; but though such work engrossed the best intellects of Europe for a longer time than has elapsed since the great fire, its effects were “writ in water,"[37] so far as our social state is concerned.

On the other hand, if the noble first President of the Royal Society could revisit the upper air and once more gladden his eyes with a sight of the familiar mace, he would find himself in the midst of a material civilisation more different from that of his day, than that of the seventeenth was from that of the first century.  And if Lord Brouncker’s [38] native sagacity had not deserted his ghost, he would need no long reflection to discover that all these great ships, these railways, these telegraphs, these factories, these printing-presses, without which the whole fabric of modern English society would collapse into a mass of stagnant and starving pauperism,—­that all these pillars of our State are but the ripples and the bubbles upon the surface of that great spiritual stream, the springs of which only, he and his fellows were privileged to see; and seeing, to recognise as that which it behoved them above all things to keep pure and undefiled.

It may not be too great a flight of imagination to conceive our noble revenant [39] not forgetful of the great troubles of his own day, and anxious to know how often London had been burned down since his time and how often the plague had carried off its thousands.  He would have to learn that, although London contains tenfold the inflammable matter that it did in 1666; though, not content with filling our rooms with woodwork and light draperies, we must needs lead inflammable and explosive gases into every corner