_Diseases_, acute, tend naturally to wear themselves out, 70. --Imputed anciently to supernatural influence, 220. --Owing to neglect, _ibid._ _Dropsy_, medicines adapted to it, 558. _Dysentery_ depends on the same cause as fevers, 36. --Arises in the Prince George from cold weather, 79. --More fatal in its acute state in a cold than a hot climate, 155. _Dysentery_, appearances upon dissection, 471, _& seq._ _Dysentery_, forms of medicines adapted to it, 553. E. _Earthquakes_ frequent in the West Indies, 88. _Effluvia_, what kind of them produce diseases, 134, _& seq._ _Elephantiasis_, peculiar to Barbadoes, 235, _& seq._ _England_, health of the fleet there compared to that in the West Indies, 67, _& seq._ --Fleet there more sickly at particular periods than in the West Indies, 208. _English_, their cleanliness only of modern date, 282. _Erasmus_, his account of the causes of pestilential diseases in England, 282. _Erysipelas_, Peruvian bark the best medicine in it, 558. _Exercise_, the advantage of it, 343. _Exercise_ in the sun very pernicious, 233. _Expeditions_, list of, frustrated by disease alone, 214. _Explosions_ of gunpowder, frequent and destructive, 539. --Means of preventing them, 540. F. _Fatigue_ tends to shorten life, 346. _Fevers_ depend on the same cause as fluxes, 36, _& seq._ --More prevalent in port than fluxes, 113, 127. --Assume a different type upon the importation of infection, 182. --Difference of its infection from that of some other diseases, 244, 249. _Fever, ship_, description of it, 371. --Treatment of it, 386. _Fever, inflammatory_, principal symptoms of it, 384. _Fevers, intermittent_, some unusual remedies for them, 456, _& seq._ --Forms of medicines adapted to them, 552. Fires, the most effectual means of sweetening the air of a ship, 117. --The most powerful means of destroying infection, 276, _& seq._ _Flour_ preferable to bread for exportation, 307. _Fluxes_ depend on the same cause as fevers, 36, _& seq._ --Prevail least when fevers most violent, 44, 113. --Apt to arise in ships soon after their arrival in the West Indies, 19, 84, 183. --More frequent at sea than in port, 113. --More frequent in ships that have been subject to fevers, 183. --Why so frequent and fatal at West India hospitals, 192, _& seq._ --Observations on them, 466. --Treatment of them, 473. _Formidable_, extraordinary degree of health on board of her, 107, 128, 365. --Causes of it, 72, 108. --Fever arises in her from men lent to another ship, 128. --From pressed men, 161. _French ships_, their discipline and œconomy inferior to British, 114.