79
Residual analyses 80
Calculation from residual analyses 80
Influence of fluctuations in temperature and pressure
on the apparent volume of air in the system 83
Influence of fluctuations in the amounts of carbon
dioxide and water-vapor upon residual oxygen 83
Control of residual analyses 84
Nitrogen admitted with the oxygen 84
Rejection of air 85
Interchange of air in the food aperture 85
Use of the residual blank in the calculations 86
Abbreviated method of computation of oxygen admitted to
the chamber for use during short experiments 88
Criticism of the method of calculating the volume of oxygen 89
Calculation of total output of carbon dioxide and
water-vapor and oxygen absorption 91
Control experiments with burning alcohol 91
Balance for weighing subject 93
Pulse rate and respiration rate 95
Routine of an experiment with man 96
Preparation of subject 96
Sealing in the cover 97
Routine at observer's table 97
Manipulation of the water-meter 98
Absorber table 99
Supplemental apparatus 100

ILLUSTRATIONS.

PAGE

Fig. 1. General plan of respiration calorimeter laboratory 4

2. General view of laboratory taken near main door 4

3. General view of laboratory taken near refrigeration room 4

4. General view of laboratory taken near temperature recorder 4

5. View of laboratory taken from entrance of bed calorimeter 4

6. Plan of heating and ventilating the calorimeter laboratory 6

7. Horizontal cross-section of chair calorimeter 11

8. Vertical cross-section of chair calo