out Germany as educational films. He very kindly ran off a number of these
for me, showing the care used in handling the milk as illustrated by pictures
of the cows, the stables, washing the cows, milking, etc. A particularly
interesting film from an educational point of view was the one illustrating
the story of a mother who had fed her infant store or milk-cart milk and who
had been obliged to take it to the hospital for treatment. This showed the
arrival of the mother at the hospital with her baby in her arms, the meeting
with the porter, her visits to the different wards, her meeting with the
Director, the reading of a letter from the doctor to the Director, her an¬
xiety over the health of her child and happiness when shown the good condi¬
tion of the infants in the hospital, with of course the grand finale when
she comes to get the child and finds it perfectly well. It is a most im¬
pressive exhibition.
The respiration ap:aratus is in a special room in the basement,
which is very well lighted and well equipped. It is exactly like one which
I saw in Berlin and while very complicated is very good. It has one great
advantage in that the respiration chamber and pump are in one tank. The
chamber is removed from the water by a crane and set of pulleys. With this
apparatus the carbon-di oxide production and oxygen consumption cannot be
determined in short periods and the periods must be at least 2 to 3 hours
long. Por the determination of the oxygen a large gasometer- is used and the
water is weighed exactly as Oppenheimer first used it. One point which
interested me was their statement that they could not always rely upon
the factory analysis of the oxygen: they said that frequently they had
received oxygen marked as 98 to 99 per cent but had found it as low as
92 per cent. The carbon dioxide absorbed by the caustic potash is deter¬
mined by the Presenius method of weighing. This takes several hours.