Cryjials of Nitre. 6| 
will be feen forming at the Bottom, Which 
being taken up on the Point of a Penknife, 
before they are grown too large, and placed 
with a little of the Fluid on a Slip of Glafs, 
will be found, if they are not broken by 
the Removal, to have amongfl them fome 
or all of the Figures £hewn in the Drop, 
and again reprelented in a larger Manner 
underneath the fame. And though the 
Crystals thus obtained are exceeding fmall* 
they are much more intire, diflindt, and 
true, than what by concreting in vail Quan¬ 
tities become Millions of Times bigger* 
as they are frequently feen in the Shops. 
Among# thefe too may be found many 
Crystals perfect at both Ends, by having 
been formed wholly detached in the fur- 
rounding Fluid, whereas thofe we get by 
any other Method are almoft conflantly 
broken at one End, from their having been 
fixed thereby to the Side or Bottom of the 
Veflel they were formed in, or elfe to one 
another. 
PLATE I. N° IV. 
The Cryflals of Nitre . 
i. The moil common Figure of Nitre - 
Cryftals , with one End broken oft. 
A Cryflal with both Ends perfedt; one 
in the ufual Form as above, the other 
Vol, II, F cut 
