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An account of a useful discovery to distill double the usual quantity of sea-water, by blowing showers of air up through the distilling liquor : $b and an account of the great benefit of ventilators in many instances, in preserving the health and lives of people, in slave and other transport ships ... also an account of the good effect of blowing showers of air up through milk, thereby to cure the ill taste which is occasioned by some kinds of food of cows. — John Shaqi

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An account of a useful discovery to distill double the usual quantity of sea-water, by blowing showers of air up through the distilling liquor : $b and an account of the great benefit of ventilators in many instances, in preserving the health and lives of people, in slave and other transport ships ... also an account of the good effect of blowing showers of air up through milk, thereby to cure the ill taste which is occasioned by some kinds of food of cows.

Name: An account of a useful discovery to distill double the usual quantity of sea-water, by blowing showers of air up through the distilling liquor : $b and an account of the great benefit of ventilators in many instances, in preserving the health and lives of people, in slave and other transport ships ... also an account of the good effect of blowing showers of air up through milk, thereby to cure the ill taste which is occasioned by some kinds of food of cows.
Author: Hales, Stephen

Hales, Stephen

Seawater -- Distillation; Ships -- Heating and ventilation

95. Tho’ from these Experiments it is manifest, that Fish die for want
of constant Supplies of fresh Air in the Water, yet when taken out of
the Water very lively, they soon die, notwithstanding the Surfaces of
their Gills are then exposed to the immediate Contact of the Air; which
shows that either the Air does not enter from the Gills to the Blood,
from the open Air, as it does from the Water; or that the Circulation
of the Blood is stopped by exchanging their proper Element, Water, for
Air; as the Circulation of the Blood of Land Animals is soon stopped by
immersing from Air into Water.

96. Hence we see the Benefit of frequently replenishing the Water with
fresh Air, which we find is necessary not only to preserve the Life
of Land Animals, but also of Fish; as also the Use of their Gills, to
spread in thin Sheets fresh Supplies of Water, that they may the better
come at the Air in the Water; for which Purpose both Sides of their
Gills are furrowed with many fine Furrows, not only thereby to enlarge
their Surfaces, but also more minutely to divide the Water, whereby to
come at the Air in it.

97. Whence we may reasonably infer, how requisite it is, in order to
keep the Blood in a salutary State, to have almost constant Supplies
of the Breath of Life, fresh Air, to mix with it: For if the principal
Use of the Gills were only to cool, and churn, and comminute the Blood,
Water devoid of Air could as well perform that Office, as Water repleat
with fresh Air. It must therefore be of Importance for all Animals to
have so necessary a vital Fluid fresh and pure, and not foul and putrid.

Public-domain text, read in full here on John Shaqi.

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