EIT. } 184 
to the back by over-straining, blows, falls and the 
like, have, in systems characterized by predisposi- 
tion to the affections under notice, the effect of 
exciting causes, beth by causing an establishment 
of some of the nuclei, of calculus, engendered by 
local violence, and by inducing morbid action in 
the kidnies. On the alert to discover some or all 
of the preceding causes, the physician is prepared 
with some prospect of success to meet them by 
curative or palliative directions and remedies 
Among the laster, the chief alkaline are magnesia — 
and magnesian salts; and the alkalies, fixed and 
volatile ; the vegetable and mineral acids, car- — 
bonic acid ; the alliaces ; come astringent diuret- 
ics 3 certain resinous narcotics ; many bitter ton- — 
1€8; all of which will be designated for their 
particular effects, in the second volume of these - 
outlines, fis 
