.. th 
Miscellaneous Intelligence. 143 
z d vari r 
24274 oz. in the author to 16°43 oz. in Professor Frankland. The quan- 
's then given, with an estimate of the amount of exertion made by differ- 
. e rtion of the carbonic acid to the air inspired: 
Varied from as 1 gr. to 54°7 cub. in. to as 1 gr. to 58 cub. in. The vari- 
ations in the carbonic acid evolved in the working day gave an average 
