About the middle of August, Friedrich Wilhelm went away;--health much hurt by his month under canvas, amid Rhine inundations, and mere distressing phenomena.
Crown-Prince Friedrich and a select party escorted his Majesty to Mainz, where was a Dinner of unusual sublimity by the Kurfurst there; [15th August (Fassmann, p.

511.)]--Dinner done, his Majesty stept on board "the Electoral Yacht;" and in this fine hospitable vehicle went sweeping through the Binger Loch, rapidly down towards Wesel; and the Crown-Prince and party returned to their Camp, which is upon the Neckar at this time.
Camp shifts about, and Crown-Prince in it: to Heidelberg, to Waiblingen, Weinheim; close to Mainz at one time: but it is not worth following: nor in Friedrich's own Letters, or in other documents, is there, on the best examination, anything considerable to be gleaned respecting his procedures there.

He hears of the ill-success in Italy, Battle of Parma at the due date, with the natural feelings; speaks with a sorrowful gayety, of the muddy fatigues, futilities here on the Rhine;--has the sense, however, not to blame his superiors unreasonably.

Here, from one of his Letters to Colonel Camas, is a passage worth quoting for the credit of the writer.

With Camas, a distinguished Prussian Frenchman, whom we mentioned elsewhere, still more with Madame Camas in time coming, he corresponded much, often in a fine filial manner:-- "The present Campaign is a school, where profit may be reaped from observing the confusion and disorder which reigns in this Army: it has been a field very barren in laurels; and those who have been used, all their life, to gather such, and on Seventeen distinguished occasions have done so, can get none this time." Next year, we all hope to be on the Moselle, and to find that a fruitfuler field...