Note 499 — ON THE PROGNOSTICS.

The observations of Andral have in some measure confirmed the opinion of Hippocrates and other authors, ancient and modern, that there are certain days in the duration of the disease in which there is a greater tendency to amelioration. Of ninety-three cases, he found twenty-three give way on the seventh, thirteen on the eleventh, eleven on the fourteenth, and nine on the twentieth days. The recoveries in the remaining cases commenced on twelve out of forty-two non-critical days, as many as eleven being ascribed to the tenth day. Thus the recoveries on critical days averaged as high as fourteen, while those on non-critical scarcely exceeded three. (Dr. C. J. B. Williams on Pneumonia, Cyclop. of Pract. Med., vol. iii., p. 405.) See also Andral, Clin. Med., c. ii., p. 365.