DETERMINATION OF BOILING POINTS. DISCUSSION. Dr. Senter asked if it was quite certain that the outside liquid had the same temperature as that in the small tube containing the capillary when the reading was made. Dr. Perkin, in reply, said that the boiling point of the liquid in the small tube was obviously the same as the temperature of the outer liquid, because in the table given the boiling points marked with an asterisk were first obtained by distillation, using the same thermometer, and it will be noticed that the results obtained by the other method are almost identical.