The following are the chief variations from a state of
health:

1. The rate of both functions is greater.
2. The night pulsation is scarcely beyond that of health ;
but the day pulsation is upwards of 20 pulsations greater,
and is more than double of the healthy increase. Thus the
chief variation in pulsation refers to the day.
3. The ranges of pulsation at each of the four periods of
the day are much greater, but especially so in the ''evening^'
and '^morning.^^

4. The respirations in the night and also in the day are
directly opposed ; but both in health and disease they are
increased generally after meals.
5. The effect of food upon pulsation is not widely different.
It is a little less at breakfast and a little more at tea and
supper, whilst it is equal at dinner. The effect upon respi-



190 nOUKht FtrtBATlON AK0

ration was greater at dinner^ less at breakfastj and equal
at tea.
6* The ratio of the two fimctions is mueb higher, and is
opposed in its hourly changes^ dnce it is highest in the
uight and lowest in the day.
7* The effect of sleep is greater^ and probably of sunlight
also.
But in making the above statements we must not forget
that the investigation for disimfic was made in June, with
powerful sunlight, and that for health in Hovemberj with but
little sunlight power.
Deductions.
The chief deductions from this investigation may be made
with more trnthfulness when I shall have ascertained the
quantity of air inspired. Only a few will, therefore^ be now

presented.
