98 Configurations of Alum. 
as they go along, from their internal Edges, 
Rows of folid Cryftals compofed of many 
oblique plain Sides b b , and which have 
all a Tendency towards the Figures of 
the regular Cryftals to be defcribed pre¬ 
fen tly. 
But it happens frequently, that in fome 
Parts of the Drop many minute and circu¬ 
lar Figures are feen, riling at fome little 
Diftances from the Edge, whilft the above- 
mentioned Operations are performing in 
other Places thereof; which minute Figures 
enlarging themfelves continually, appear at 
laft of a ftar-like Form, or with Lines radi¬ 
ating and diverging from a Center,, in the 
Manner reprefented c c . 
After the Buftnefs is over about the Edges* 
a good deal of Patience will be requifite to 
wait for the Configurations in the Middle 
of the Drop, which feldom begin till the 
Fluid feems aimoft wholly evaporated; when 
on a fudden many ftrait Lines appear pulhing 
forwards, whofe Sides or Edges are jagged, 
and from which other fimilar ftrait and 
jagged Lines Ihoot out at right Angles with 
the firft 5 thefe again have other fmall ones 
of the fame Kind (hooting likewife from 
themfelves, and compofe altogether a moft 
beautiful and elegant Configuration, the 
Order of which is attempted to be fhewn 
at D. ■ 
Each 
