From The Ship-Master's Assistant and Owner's Manual (1795) by David Steel:

"In hospital-ships, the gun-deck is entirely set apart for the reception of the sick; it is to be flush, without cabins or bulkheads, except a deal or canvas one, for separating such as have malignant distempers: it is to contain the necessary cradles and bedding; two pair of chequered linen sheets are allowed to each bed; and scuttles must be made for inlets of the air.

"In an hospital-ship there is allowed a physician, surgeon, four mates, and six assistants, a servant to the surgeon, a baker, and four washermen."