The door of the calorimeter is a heavy, double, insulated door,
and the whole thing partakes of the nature of a Simon-pure, physical
apparatus for measuring the heat from some source. Capstick uses the
electrical method with "thread recorder" for getting continuous records
of the ingoing and outgoing air and water temperature, and he has applied
all the principles of physics to this apparatus with a very high degree
of accuracy.
He lias two very clever assistants, a Dr. Thomas Deighton and a
Mr. Morgan, who looks after the animals. Deighton made a very good
impression upon U3, Morgan seems a very serious, capable man. A group
photograph (see figured ) was taken at the rear corner of the chamber,
about on the spot where the views in figures § 1 and ? 0 were taken.
Gapstick is seated, Dr. Deighton is at the left in the rear, and Mr. Morgan
is at the right. One sees here also various registration devices at the
right hand side, which represents the left wall of the calorimeter as
one faces the entrance door.
Gapstick is a remarkable personality. He is a man of independent
means and had been a "reader in physics". He then apparently lost all
interest in teaching and research, and lived the life of a retired
gentleman, occupying a suite of rooms in Trinity College. Many years
later he became intensely interested in this calorimeter problem as a
purely physical thing, after which he bent every effort to perfect it
and has now a highly accurate instrument.
His experiments thus far have been chiefly with a pig. They began
with a small, young pig, and carried him on until he got too large to
put in the chamber. They had numerous curves showing the heat evolved