blacker to many men after their letting of blood than it was at first. For this cause belike Salust. Salvinianus, l. 2. c. 1, will admit or hear of no bloodletting at all in this disease, except it be manifest it proceed from blood: he was (it appears) by his own words in that place, master of an hospital of mad men, [1502]and found by long experience, that this kind of evacuation, either in head, arm, or any other part, did more harm than good. To this opinion of his, [1503]Felix Plater is quite opposite, though some wink at, disallow and quite contradict all phlebotomy in melancholy, yet by long experience I have found innumerable so saved, after they had been twenty, nay, sixty times let blood, and to live happily after it. It was an ordinary thing of old, in Galen's time, to take at once from such men six pounds of blood, which now we dare scarce take in ounces: sed viderint medici; great books are written of this subject. Purging upward and downward, in abundance of bad humours omitted, may be for the worst; so likewise as in the precedent, if overmuch, too frequent or violent, it [1504]weakeneth their strength, saith Fuchsius, l. 2. sect., 2 c. 17, or if they be strong or able to endure physic, yet it brings them to an ill habit, they make their bodies no better than apothecaries' shops, this and such like infirmities must needs follow. SUBSECT. V.—_Bad Air, a cause of Melancholy_. Air is a cause of great moment, in producing this, or any other disease, being that it is still taken into our bodies by respiration, and our more inner parts. [1505]If it be impure and foggy, it dejects the spirits, and causeth diseases by infection of the heart, as Paulus hath it, lib. 1. c. 49. Avicenna, lib. 1. Gal. de san. tuenda. Mercurialis, Montaltus, &c. [1506]Fernelius saith, A thick air thickeneth the blood and humours. [1507]Lemnius reckons up two main things most profitable, and most pernicious to our bodies; air and diet: and this peculiar disease, nothing sooner causeth [1508](Jobertus holds) than the air wherein we breathe and live. [1509]Such as is the air, such be our spirits; and as our spirits, such are our humours. It offends commonly if it be too [1510]hot and dry, thick, fuliginous, cloudy, blustering, or a tempestuous air. Bodine in his fifth Book, De repub. cap. 1, 5, of his Method of History, proves that hot countries are most troubled with melancholy, and that there are therefore in Spain, Africa, and Asia Minor, great numbers of mad men, insomuch that they are compelled in all cities of note, to build peculiar hospitals for them. Leo [1511]Afer, lib. 3. de Fessa urbe, Ortelius and Zuinger, confirm as much: they are ordinarily so choleric in their speeches, that scarce two words pass without railing or chiding in common talk, and often quarrelling in their streets. [1512]Gordonius will have every man take notice of it: Note this (saith he) that in hot countries it is far more familiar than in cold.