Salt of ^Tartar. 155 
in order to colled! together and reprefent 
the general Idea of it. 
If the Solution be not heated in the Bot¬ 
tle, to diffolve the Sediment it throws down* 
little will appear but the Brufh-like Figures. 
Glauber s Salt is reckoned to anfwer the 
Intention of moil purging Waters : it pro¬ 
motes Evacuation both by Stool and Urine, 
and may be fo made as to be lefs naufeous 
than moll; other artificial purging Salts. 
CHAP. XXIX. 
Salt of Tartar. 
A FTER heating a Drop of the Solu** 
Jt jL tion of this Salt, there arife in many 
Places, near its Edges, Numbers of minute 
Bodies, pretty irregular in their Form, but 
moftly inclining to be triangular; as may be 
feen in the Drawing, at the Side b . (fee Plate 
VI.) Several of thele appear likewife farther 
within the Drop, and produce all the Varie¬ 
ty of Figures cc, d d,&c .—There fhoot at the 
fame Time, from fome Parts of the Edge, 
tranfparent Bodies with parallel Sides termi¬ 
nating as at a , fome whereof are ftrewed 
over with the little Triangles before defcrib^ 
ed. From other Parts of the Edges branch¬ 
ed Figures prefent themfelves, refembling 
fmall Shrubs, (vid. fj whofe Twigs are 
naked 
