An essay, on the most effectual means, of preserving the health of seamen, in the Royal Navy : Containing, cautions necessary for those who reside in, or visit, unhealthy situations; with directions, proper for the security of all such, as attend sick persons in fevers. And an appendix of observations, on the treatment of diseases in hot climates. By James Lind, M.D. fellow of the Royal College of Physicians in Edinburgh.