/ 
iso Salt Ammoniac* 
break in order to get it out,—All this may 
perhaps be true, but I am apt to think it is 
made much nearer home, and by more eafy 
means. 
Some of this Salt diffolved in Water, and 
a Drop thereof placed on a Slip of Glafs, 
to be examined by the Microfcope, will be 
found to fhoot with a fmall Degree of Heat $ 
which muft be very carefully obferved, for 
if more Heat than juft enough be given 
to it, the Configurations will run into one 
another, and make the Whole appear in 
great Confufion. 
It begins with fhooting from the Edges 
great Numbers of fharp, but thick and 
broad Spiculce , from whofe Sides are pro¬ 
truded as they rife many others of the 
fame Shape, but very fhort, parallel to each 
other, but perpendicular to their main Stem* 
as at i. Plate III. N° III. Thefe Spicuhz 
arrange themfelves in all Directions, but 
for the moft Part obliquely to the Plane 
from whence they rife, and many are fre¬ 
quently feen parallel to one another : which 
Particulars the Figure endeavours to ex- 
prefs at i, i-«As they continue to pufh 
forwards (which they do without increaf- 
ing much in Breadth) fome fhoot from 
them the fmall Spiculce only, as at 2. 
Others, after they are nearly come to their 
full Growth, divide into two Branches, in 
a Manner different from all other Kinds 
f 1 of 
