nefia alba, vomits, and bitters* file has deftroyed, in a great mea- ihre, the acidity in her ftomach. I had fome years fince a patient of a very delicate nervous fy- ftem, whofe eyes, when his flomach was much troubled with acidi¬ ty and flatulence, were fometimes rendered fo very fenfible, that looking ftedfaftly on a crimfon colour, or coming fuddenly from a bright light into a dark room, or from this lafl into the fun-fliiner would occafion a giddinefs and pain above his eyes, together with a dimnefs of fight, and a. bilious vomitings XVII. Lo w fpirits* melancholy, and' a mania,- 1. In cafes of an irregular gout, when the arthritic matter falls* upon the flomach and bowels* it frequently produces a naufea, fla¬ tulence,, low fpirits, anth other uneafy fymptoms. In fuch, winch pent up in the flomach or inteflines occafions a difagreeable tho not painful fenfation, attended with a. faintnefs, languor, and de- preflion of mind;. But at other times, when this arthritic matter has left thefe parts*. we may obferve, that a greater degree of fla¬ tulence; occafioned by errors in diet, will have no fuch efiedt. Low fpirits, therefore, in hypochondriac and hyfieric cafes, may be fre- - quently owing to feme morbid matter in the blood, flatulent aneb improper aliments, or other caufes affedting the flomach and, bowels with a particular fenfation ; which, tho’ not painful, never thelefs is attended with great dejeclion of mind* 2. Low fpirits may be occafioned by obftrudlions in the liypo^ chondriac *uifeera, viz. the flomach, liver, <&c,> But as obftrudlions? often happen in thofe parts without any remarkable dejedlion of mind, whenever they are attended v^ith this fymptom, it muft be; owing principally to the nature of the obftrudling matter, or ra¬ ther to a particular morbid ft ate of the nerves of xhotevifeera, 3. A mania, and the higher degrees of melancholy , may pro* eeed from fome noxious matter in the blood, carried, from tl i evÿ cera of the lower belly, or otheV parts where it was chiefly lodged,, to the brain. Of this I fhall give an inftance or two, that fome time ago occurred in my practice*.