The chapters of his last work relative to the _tabes dorsalis_, are those which have for their title _calor morbosus_, morbific heat, at disease, be it here parenthetically remarked, very frequent, of which no one had before treated, and which has been often subjected to improper methods of cure, as I have elsewhere lamented, and of which M. LIEUTAUD has been the first to unfold the symptoms, the nature, and curative indication. _Vires exhaustæ_, and _anæmia, or deficiency of blood_, a very interesting chapter, which is intirely and originally that author’s. M. LEWIS, whose work I could not procure for myself before the impression of the first edition of mine, is one who has the most of any enlarged upon the method of cure. I had the pleasure of finding that we agreed perfectly in our ideas, and that we employed the same remedies, especially the bark, and the cold bath; a conformity which appears to me a proof in favor of the practice we have, in this case, both followed. I shall only quote here the two aphorisms that comprehend the substance of his doctrine: I shall avail myself of some passages in the explanation which he gives to them, to confirm, in the following Section, my own practice. “The cure of this disease (says that able physician) depends as much on knowing what to avoid as what to do. Without a nice regularity of the non-naturals, therefore, medicine will have little or no effect. Thus the salubrity of the air is or great importance; the diet should be analeptic and cooling; sleep little, and in due season; moderate exercise must be used, especially riding on horseback. The secretions of the body are to be regulated if out of order, and the patient should be entertained with chearful company and mirthful diversions. All the remedies that are necessary, are derived from the two classes of balsamics and astringents[99].”