On the sudoriparous and lymphatic glandular systems; the vital nature of their functions in preparing the conditions necessary to venous absorption, and the effect of their derangement in the production of the various diseases ascribed to malaria / by Robert Willis.

Date:: 1877

Credit: On the sudoriparous and lymphatic glandular systems; the vital nature of their functions in preparing the conditions necessary to venous absorption, and the effect of their derangement in the production of the various diseases ascribed to malaria / by Robert Willis. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

18/88 page 6

$th.c conclusions mistakenly drawn from tlie experiments of Fordyce and Blagden, are, ^^^thout a^single exception, directly opposed to them. Messrs Delarocho and Berger, operating with temperatures generally considerably lower than those employed by the English physiologists, observed that the heat of the animals which were the subjects’’of their experi- ments rose invariably and steadily; that their health became so seriously affected that few of them withstood exposure in the heated chamber for an hour without beinir reduced to extremity ; and that when removed either in a dying state or at the moment of their death, their internal temperature was from 11*5° to 15*75° Fahr. higher than it had been on their entrance. Nor was the case different in regard to man; although, from the subjects of observation here not being shut up in the stove until they died, the rise of temperature noted was of course less remarkable. To discover that it was both signal enough and rapid enough, however, the 37th experi- ment, of which M. Delarocho was himself the subject, may bo referred to. On entering the heated chamber, M. Delaroche’s internal temperature was 29^ Keaumur; on quitting it, after no longer a stay than eight minutes, his internal temperature indicated 33^ Reaumur. In this very short space of time, therefore, the temperature of the internal parts of ]\I. Dela- roche’s body had actually gained 4° of Reaumur, or 9° of Fahrenheit’s scale. In the memoir published several years subsequently to his inaugural dissertation,* !M. Delarocho himself refers to the misinterpretation of his experiments, and the neglect of the true conclusions to which they lead. lie says in express terms (1. c. p. 291). “J ’ai vu constamment que la tempera- ture des animaux exposes a une chaleur de plus dc 35° ou 40° C. s’elevait d’une maniere tres marqu4 ; que cette eleva- tion de temperature allait jusque a G° ou 7° C.; et jeme suis • Sur la cause de refroidisscraent qu’on observe chez les animaux exposes a une forte chalcur.—Journal de Physique, tom. 71, p. 289 ct scq.$