it as to make
it more effectual. But really, if people want to know how to build what
are called well-ventilated houses, they must not expect me to tell them;
let them buy Mr. Hosking's book on "The proper Regulation of Buildings in
Towns."

Up to this date, as I am glad to know, few architects have heard of
ventilation. Under church galleries we doze through the most lively
sermons, in public meetings we pant after air, but we have architecture;
perhaps an airy style sometimes attempts to comfort us. These
circumstances are, possibly, unpleasant at the time, but they assist the
cause of general unhealthiness. Long may our architects believe that human
lungs are instruments of brass; and let us hope that, when they get a
ventilating fit, they will prefer strange machines, pumping, screwing,
steaming apparatus. May they dispense then, doctored air, in draughts and
mixtures.(4)

Fresh air in certain favored places--as in Smithfield, for example--is
undoubtedly an object of desire. It is exceedingly to be regretted, if the
rumors be correct, that the result of a Commission of Inquiry threatens,
by removing Smithfield, to destroy the only sound lung this metropolis
possesses. The wholesome nature of the smell of cows is quite notorious.
Humboldt tells of a sailor who was dying of fever in the close hold of a
ship. His end being in sight, some comrades brought him out to die. What
Humboldt calls "the fresh air" fell upon him, and, instead of dying, he
revived, eventually getting well. I have no doubt that there was a cow on
board, and the man smelt her. Now, if so great an effect was produced by
the proximity of one cow, how great must be the advantage to the sick in
London of a central crowded cattle-market!

XI. Exercise.

There is a little tell-tale muscle in the inner corner of the eye, which,
if you question it, will deliver a report into your looking-glass touching
the state of the whole muscular system which lies elsewhere hidden in your
body. When it is pale, it praises you. Muscular development is, by all
means, to be kept down. Some means of holding it in check we have already
dwelt upon. Muscular power, like all other power, will increase with
exercise. We desire to hold the flesh in strict subjection to the spirit.
Bodily exercise, therefore, must be added to the number of those forces
which, by strengthening the animal, do damage to the spiritual man.

We must take great pains to choke the energy of