ox THE .MEASUREMENT OF TEMPERATURE. 
123 
19. Details of the Results of One Experiment. 
As we have already stated, each determination of the ice-point or boiling-point 
consisted of four separate observations of the height and temperature of the 
barometer column, of the temperature of the stem, &c. The readings were taken 
l:»y eacli of us alternately. In determining tire l)oiling-point the l)arometer was also 
read three times, at the beginning, at the end, and in the middle of each set of 
experiments, and the temperature of the bulb was calculated from the mean corrected 
pressure. It would be useless to set down tlie whole of the measurements involved 
in every experiment, but in order to give an idea of the accuracy of the observations, 
we give the full details of one complete set of measurements. 
