building Daniel had ever seen, and something about it replenished his energies.
“Nothing about the English landscape is forever fixed. Just as you have probably grown used to the presence of that Dome,” Daniel said, nodding down Fleet to St. Paul’s, and obliging Mr. Threader to turn around and rediscover it, “we might grow accustomed to multitudes of black slaves, or steam-engines, or both. I speculate that the character of England is more constant. And I flatter us by asserting, furthermore, that ingenuity is a more essential element of that character than cruelty. Steam-engines, being a product of the former virtue, are easier to reconcile with the English scene than slavery, which is a product of the latter vice. Accordingly, if I had money to bet, I’d bet it on steam-engines.”
“But slaves work and steam-engines don’t!”
“But slaves can stop working. Steam-engines, once Mr. Newcomen has got them going, can never stop, because unlike slaves, they do not have free will.”
“But how is an ordinary investor to match your level of confidence, Dr. Waterhouse?”
“By looking at that,” Daniel answered, nodding at St. Paul’s, “and noting that it does not fall down. Go and examine its arches, Mr. Threader, and you will see that they are in the shape of parabolas. Sir Christopher Wren made them thus, on the advice of Hooke; for Hooke shewed that it should be so.”
“You have quite wandered away from me. It is an excellent church. I see no connection to steam-engines.”
“Both church-domes and engines are subject to physical laws, which are, in turn, amenable to mathematickal calculations; and we know the laws,” Daniel announced. “It is at least as well-founded as what you do for a living.”
They had come to a halt before the mouse-hole in the north side of Fleet Street that led to Crane Court. The driver maneuvered his team into it, giving directions to the other drivers that the baggage-cart alone should follow; the remainder of the train, consisting by this point of two large carriages and a second baggage-wain, were to remain in Fleet Street, and to get themselves turned around and aimed in the direction of Ludgate.
Getting the horses, their tack, and the carriage to pass through that archway was a bit like funneling a model ship, rigging a-luff, through the neck of a jug. At one point they drew to a full stop and Daniel, glancing out a side-window, found himself within kissing range of a pedestrian—gawky, post-smallpox, perhaps thirty years of age—whose advance down Fleet Street had been barred by all of Mr. Threader’s maneuvers. This fellow, who affected a ratty horse-hair wig, and who carried a smoky lanthorn in one hand and a staff in the other, peered in on them with frank curiosity that Mr. Threader found unseemly. “Go to, go to, sirrah, we are no concern of the Watch!”
The carriage moved forward into the narrow cul-de-sac of Crane Court.
“One of the Royal Society’s new neighbors?” Daniel asked.
“That watchman? No, I should think not!”
“Each inhabitant is supposed to take his turn on the Watch,” Daniel said pedantically, “and so I assumed…”
“That was twenty years ago when the Act was passed,” Mr. Threader returned, sorrowful over Daniel’s naïveté. “It has become the practice for householders to pool a bit of money and pay some fellow—usually some caitiff from Southwark—to do the chore in their stead. As you encountered him this evening, so shall you every evening, unless you have the good fortune to pass by while he is in Pub.”
Still they were making their way, tentatively, down Crane Court. Once they had squeezed through the entrance, it had broadened slightly, to the point where two oncoming carriages might scrape past each other.
“I rather thought we should be leaving you off at the home of some distinguished Fellow,” said the bemused Mr. Threader. “I say, you’re not on the outs with them, are you?” he jested, trying to terminate their journey on a jolly note.
I shall be soon enough. “I have several invitations in my pocket, and mean to spend them methodically—”
“Like a miser with his coins!” said Mr. Threader, still trying to haul Daniel up to the level of joviality that he considered suitable upon parting; perhaps this meant he wanted to see Daniel again.
“Or a soldier with his pouch of balls,” Daniel returned.
“You may add one more!”
“I beg your pardon?”
“Invitation! You must come and lodge with me for a few days, Dr. Waterhouse; I shall take it as an affront if you do not.”
Before Daniel could think of