310 ON THE QUANTITY OF FOOD 



small drops of fluid on the backs of my hands; 

 without any sensation of heat above common. 

 My appetite was rather keener than usual during 

 the day, and I felt uncommon agility in the 

 evening. The secretion by the kidnies, was 

 not at all disturbed. But on retiring to bed 

 I burst into a profuse perspiration, which con- 

 tinued through the night, and was felt in degree 

 during the succeeding night. By taking care, 

 the effects went off without any perceptible 

 detriment. 



Being satisfied, by the preceding trains of 

 experiments, that no more information was to 

 be expected in this way than was already ac- 

 quired, I varied the process, with a view to 

 obtain the quantity of perspiration, and the 

 circumstances attending it more directly. I 

 procured a weighing beam, by which I could 

 weigh my body, so that the beam would turn 

 with one ounce. Dividing the day into periods 

 of four hours in the forenoon, four or five hours 

 in the afternoon, and nine hours in the night, 

 or from ten o'clock at night to seven in the 

 morning, 1 endeavoured to find the perspiration 

 corresponding to those periods respectively. 



My method of proceeding was, to weigh 

 myself directly after breakfast, and again before 



