]84 PHILOSOPHICAL TRANSACTIONS. [aNNO 1685. 



dominant mineral in the vitriolated water, the infusion of galls does not answer 

 it, for on a strong solution of Roman vitriol, where copper is the predominant 

 metal, the infusion of galls afforded neither a black nor blackish colour, only a 

 thick and muddy one, that was not so much as purplish. 



In his 5th section he observes, and brings his ocular demonstration for the 

 life and motion of those creatures found in water wherein pepper has been in- 

 fused. He observes likewise that the freshness and quickness of such ferru- 

 ginous waters as are lighter than common water, are much lost in the removal. 

 He dislikes the division of mineral waters into acidulae et thermae, having by 

 several trials found, that there is not a manifest acidity in those waters that are 

 not sulphureous or hot ; neither does he think any of our purgative waters con- 

 tain a salt that belongs to any one known sort of salts ; but is either of a sort 

 for which we have yet no name, or else is of a compounded nature, since two 

 bodies, neither of which is cathartic, may by a change of texture compose a 

 third body briskly purgative ; of which he has given an example ; he adds that 

 those ferruginous waters, that are not heavier than common water, and in most 

 drinkers prove but diuretics, afford very little caput mortuum, or dry substance, 

 on the total evaporation of their liquor, whereas mineral waters that are purging, 

 and manifestly more ponderous in species than common water, leave a consi- 

 derable quantity of residence, ex. gr. l lb. of Barnet water, which is purgative, 

 yielded 1 dram of white powder. 1 lb. of Tunbridge water yielded caput mor- 

 tuum, about 1 dr. 25 gr. 1 lb. of German spa water gave but gr. 1-i-. Neither 

 need so small a quantity seem inconsiderable, since upon trial one part of mar- 

 casite communicated a tincture to 61440 parts of the infusion of galls ; and on 

 computation 1 gr. of vitriolate substance might impregnate 6000 times its 

 weight of common water, so as to make it fit to produce with galls a purple 

 colour. To all which lastly is subjoined the 6th section, which the author 

 says, consists o;ily of a set of articles referable to the medicinal use of mineral 

 waters. 



Phcenomena in Cadavere prcenobilis cujusdam Ftemime, ^poplexia peremtee, inter 

 dissecandum, Mali 12, 1679, d Clariss. Medico Z)"° £/" Cole observata. Trans- 

 lated and abridged from the Latin, N° 173, p. 1068. 



The lady of rank, who is the subject of this narrative, was affected many 

 years before her death with what are commonly called hypochondriacal and hys- 

 terical symptoms ; and latterly in addition to these with bleedings from the nose, 

 sometimes so profuse as to be extremely alarming. Among other remedies, 

 recourse had been had to the lancet, which (as well as the hemorrhages) had 

 frequently afforded relief, although the patient was much emaciated, nut only 



