The truth is, his health, unknown to him (though that of taking a Night at the Spa Well probably denotes some guess or feeling of the kind on his part), must have been in a dangerous or almost ruinous state. Accordingly, soon afterwards, September 18th-19th, in the night-time, he was suddenly aroused by a Fit of Suffocation (what they call STICKFLUSS); and, for some hours, till relief was got, everybody feared he would perish. Next day, there came gout; which perhaps he regarded almost as a friend: but it did not prove such; it proved the captain of a chaotic company of enemies; and Friedrich's end, I suppose, was already inexorably near. At the Grand Potsdam Review (22d-23d September), chief Review of all, and with such an affluence of Strangers to it this Autumn, he was quite unable to appear; prescribed the Manoeuvres and Procedures, and sorrowfully kept his room. [This of 23d September, 1785, is what Print-Collectors know loosely as "FRIEDRICH'S LAST REVIEW;"--one Cunningham, an English Painter (son of a Jacobite ditto, and himself of wandering habitat), and Clemens, a Prussian Engraver, having done a very large and highly superior Print of it, by way of speculation in Military Portraits (Berlin, 1787); in which, among many others, there figures the crediblest Likeness known to me of FRIEDRICH IN OLD AGE, though Friedrich himself was not there. (See PREUSS, iv. 242; especially see RODENBECK, iii. 337 n.)--As Crown-Prince, Friedrich had SAT to Pesne: never afterwards to any Artist.] Friedrich was always something of a Doctor himself: he had little faith in professional Doctors, though he liked to speak with the intelligent sort, and was curious about their science, And it is agreed he really had good notions in regard to it; in particular, that he very well understood his own constitution of body; knew the effects of causes there, at any rate, and the fit regimens and methods:--as an old man of sense will usually do. The complaint is, that he was not always faithful to regimen; that, in his old days at least, he loved strong soups, hot spicy meats;--finding, I suppose, a kind of stimulant in them, as others do in wine; a sudden renewal of strength, which might be very tempting to him. There has been a great deal of unwise babble on this subject, which I find no reason to believe, except as just said: In the fall of this year, as usual, perhaps rather later than usual,--not till November 8th (for what reason so delaying, Marwitz told us already),--he withdrew from Sans-Souci, his Summer-Cottage; shut himself up in Potsdam Palace (Old Palace) for the winter. It was known he was very ailing; and that he never stirred out,--but this was not quite unusual in late winters; and the rumors about his health were vague and various. Now, as always, he himself, except to his Doctors, was silent on that subject. Various military Doctors, Theden, Frese and others of eminence, were within reach; but it is not known to me that he consulted any of them.