686 
DE. E. SMITH OjS' THE CHEMICAL 
Observers. 
Lavoisier and Seguiiv- 
COATHUPE .... 
Valentin and Brunner 
Andral and Gav arret 
Subjects of experiment. Carbon expired ia 21 hours. 
SCHARLING' 
Barral 
> Skin also 
oz. 
gro3 
One person. 
JlO 
L 5 
4 ] 
7i 
French. 
One person. 
5-45 
Avoirdupois. 
Several. 
9-202 
Avoirdupois. 
Several. 
r 4-0068 
112 
^Avoirdupois. 
r 4-4 
" Several. 
1 8-464 
One person. 
r 8-5 
-Avoirdupois. 
112 
Many persons. 
13-9 
Avoirdupois. 
One person. 
6-78 
Liebig 
ViERORDT 
This Table shows that the estimated quantities hitherto recorded are very diverse, and 
I now proceed to state the result of my own inquiries. 
Four series of inquiries have been instituted to determine these facts. In two (see 
Tables I. and II.) the experiments were continued during ten minutes, at the commence- 
ment of each hour, and also of each half-hour immediately following the meals, whilst m 
the others (see Tables III. and IV.) the inquiry was continuous, that is, the whole 
carbonic acid was collected during the whole hours of the working day, with very short 
intervals for meals. Of the two first, one took place on March 12, 1858, m the Huntenan 
Museum of the Eoyal College of Surgeons, by the great courtesy of fine President and 
Council of that learned body, beginning at 7 a.m. and ending at midnight; the other in 
the house of Mr. Moul, who, with great devotion to science, gave very efficient aid m this 
inquiry, continuing from 6-| a.m. until 10 p.m. on May 15. 
In the first inquiry the subjects were : — 
Myself, get. 38 years, 6 feet high, 196 lbs. in weight, and a vital capacity of 280 cubic 
inches. 
Mr. Moul, eet. 48 years, 5 feet 9-^ inches high, 175 lbs. weight. 
Dr. Murie, ffit. 26 years, 5 feet 7^ inches high, 133 lbs. weight, lutal capacity 250 
cubic inches. ^ 
In the second, myself, Mr. Moul, and Professor Frankland, F.R.S., set. o3 years, 
5 feet 10-1 inches high, and 136 lbs. weight. 
The two latter inquiries (or those in which the whole carbonic acid was collected) 
were prosecuted upon myself alone ; one on March 22, in the Hunterian Museum, from 
6|- A.M. until 9i P.M., and the other in my own house on August 10, from 7^ a.m. until 
11^ P.M., with the exception of hour in the first, and one hour in the second inquii)' for 
meals at three or four periods of the day. All these inquiries were made in the sitting 
posture, except during 2^ hours at various times in each of the two last inqiiiiies, when 
relief was sought in the standing posture, at accurately noted periods. A state of 
mental and bodily rest was aimed at; but I undertook the weighing, and being alone in 
the inquiry on August 10, I had also the duty to fill and empty the apparatus; and 
