150 
DR. M. W. TRAVERS. MR. G. SENTER, AND DR. A. JAQUEROD 
(TIT.) Thermometer B (20 cuh. ceiitims. 'milh). 
Tlie thermometers were tilled '"■ith heliimi purified by passing it through a coil 
cooled to 15°’5 by means of licpiid liydrogen l)oiling under reduced jiressure 
(Appendix III.). 
Ice-Point of Thermometer, June 4th, 1902. 
Pressure on gas 
in thermometer. 
Temperature of 
dead-space. 
Constant. 
milliiBS. 
°C. 
Main thermometer .... 
939-95 
17-35 
90-503 
Auxiliary thermometer. 
954 
17-3 
8-093 
Vapour Pressure of Licpiid Oxgen 
Pressure on gas 
in thermometer. 
Temperature of 
dead-sjDace. 
Temperature 
of stem. 
Vapour pressures 
of 
liquid oxygen. 
Tempc 
Pound. 
nature 
Calculated. 
niillims. 
°C. 
° He. scale. 
minims. 
° He. scale. 
° He. scale. 
288-1 
17-7 
98 
322-0 
82-73 
82-74 
288 - 7 
18-0 
100 
328-0 
82 - 90 
82-89 
(IV.) Thermometer (f (2(D7 cub. centims. bidb). 
The helium was from the same samjde as was \ised in the last experiment. 
Ice-Point of Thermometer, June 11th, 1902. 
Pressure on gas 
in thermometer. 
Temperature of 
dead-space. 
Constant. 
Main thermometer .... 
millims. 
922-25 
°C. 
16-90 
91-204 
The auxiliaiy thermometer Avas not refilled. 
