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.

"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" by Stephen Hales unveils revolutionary techniques for producing fresh water from seawater and underscores the critical role of ventilation in maintaining the health of individuals on ships during extensive voyages. Hales explains his method of improved water distillation, demonstrating efficiency and production by integrating air into the seawater. He also shows how using better ventilation on ships can decrease sickness by making air fresher for people to breathe. Hales's research offers insight into how these improvements can greatly aid sea travel and health, especially on ships with many people.