The Men should be obliged to keep themselves neat and clean; to comb their Hair, and change their Linen often; and if the Camp be near the Sea, or a large River, they ought to bathe early in the Morning as often as the Nature of the Service will permit. However the following Caution, mentioned by Dr. _Lind_, ought to be observed, which is, not to go into the cold Bath when overheated with Work or Liquor, or when the Stomach is full, or when a critical Eruption, called the prickly Heat, appears on the Skin[133]. [133] Dr. _Lind_ says, the Use of the cold Bath, either in Tubs under the Forecastle, or to dip in the Sea early in the Morning, has been found extremely beneficial in warm Weather and hot Countries; and that he can affirm, from his own Experience in hot Climates, that many Diarrhœas and other Complaints, the pure and sole Effect of an unusual and great Heat (relaxing the System of the Solids, and occasioning a Colliquation of the Animal Juices), have not only been cured by cold Bathing; but their Return, and even the Attack of such Diseases, effectually prevented by it. _Ibid._ p. 44, &c. When Men are seized with inflammatory Symptoms on entering into warm Climates, they may be blooded freely: Afterwards they do not easily bear such copious Evacuations, but rather require to have them made in smaller Quantities, and very early and frequent, as Inflammations make a rapid Progress in warm Countries. Dr. _Lind_ says, many Practitioners disapprove of Blood-letting in the Countries lying under the Torrid Zone, on a Supposition that the Blood is too much dissolved; but he thinks that this Rule will admit of many Exceptions; and that Sailors (_and consequently Soldiers_), being strong and robust, and exposed to greater Vicissitudes of Heat and Cold, and more Excesses, and other Accidents in general, bear freer Bleeding than any other Set of People. After some Time, the Diseases in these warm Climates tend to the putrid Kind, and must be treated as such.