The philosophy imputed to him in that beautiful outbreak, the hour there, amid such happy provision, striking for him, would have been then, on behalf of my man of imagination, to be logically and, as the artless craft of comedy has it, “led up” to; the probable course to such a goal, the goal of so conscious a predicament, would have in short to be finely calculated. Where has he come from and why has he come, what is he doing (as we Anglo-Saxons, and we only, say, in our foredoomed clutch of exotic aids to expression) in that _galère?_ To answer these questions plausibly, to answer them as under cross-examination in the witness-box by counsel for the prosecution, in other words satisfactorily to account for Strether and for his “peculiar tone,” was to possess myself of the entire fabric. At the same time the clue to its whereabouts would lie in a certain principle of probability: he wouldn’t have indulged in his peculiar tone without a reason; it would take a felt predicament or a false position to give him so ironic an accent. One hadn’t been noting “tones” all one’s life without recognising when one heard it the voice of the false position. The dear man in the Paris garden was then admirably and unmistakeably _in_ one—which was no small point gained; what next accordingly concerned us was the determination of _this_ identity. One could only go by probabilities, but there was the advantage that the most general of the probabilities were virtual certainties. Possessed of our friend’s nationality, to start with, there was a general probability in his narrower localism; which, for that matter, one had really but to keep under the lens for an hour to see it give up its secrets. He would have issued, our rueful worthy, from the very heart of New England—at the heels of which matter of course a perfect train of secrets tumbled for me into the light. They had to be sifted and sorted, and I shall not reproduce the detail of that process; but unmistakeably they were all there, and it was but a question, auspiciously, of picking among them. What the “position” would infallibly be, and why, on his hands, it had turned “false”—these inductive steps could only be as rapid as they were distinct. I accounted for everything—and “everything” had by this time become the most promising quantity—by the view that he had come to Paris in some state of mind which was literally undergoing, as a result of new and unexpected assaults and infusions, a change almost from hour to hour. He had come with a view that might have been figured by a clear green liquid, say, in a neat glass phial; and the liquid, once poured into the open cup of _application_, once exposed to the action of another air, had begun to turn from green to red, or whatever, and might, for all he knew, be on its way to purple, to black, to yellow. At the still wilder extremes represented perhaps, for all he could say to the contrary, by a variability so violent, he would