0
capital required for the
improvement of the town

Total increased rental 8,959 9 8
(including the annual expense
of street-sweeping)

Immediate expenditure for each 5 19 3
house

Total increased annual rent 0 15 11
for each house

Total increased weekly rent 0 0 3.75
for each house

Immediate expenditure per head 1 3 9
of the population

Annual expenditure per head of 0 3 6.5
the population

Weekly expenditure per head of 0 0 0.75 14/52
the population

_Evidence of Rev. J. Clay_. _Health of Towns Report_, _page_ 196.

DR. ARNOTT TO THE AUTHOR, ON THE SUBJECT OF VENTILATION.

Bedford Square, January, 1845.

MY DEAR SIR,

To aid the memory of persons inquiring about the means of preserving
health, I have elsewhere endeavoured to mark clearly, that the four
things, fit _air_, _temperature_, _aliment_, and _exercise_, are all that
need to be secured, and the two things _violence_ and _poisons_ all that
need to be avoided, by men of sound constitution, that they may enjoy
uninterrupted health and long life;--and consequently that the causes of
all other disease than the decay from age are to be looked for in errors
committed in regard to these four necessaries, or in the direct influence
of these two kinds of noxious agents. The tabular view on the opposite
page {282}, now to be examined, exhibits the subject to the eye.

* * * * *

In some moderately warm and uniform climates of the earth, such as the
Azores or Western Isles in the Atlantic, the two first mentioned
necessaries, viz. fit temperature and pure air, are so constantly present
that the inhabitants no more think of them as necessaries to be laboured
for than they think of the gravitation which holds their bodies to the
earth as such a necessary. But in colder, or changing climates, to
procure house-shelter, clothing, and fuel, for cold weather becomes a
very considerable part of the necessary business of life. And where food
is dear, that is to say, obtainable only as the reward of much labour, as
is true in England, the amountof labour which individuals can perform
with safety to their health, is often not suffi