121 
Ens Veneris. 
may be difbovered in the Fluid, when their 
magnified Appearance is no bigger than a 
Pin's Point, gradually increafing every Mo¬ 
ment with regular Sides and Angles, poliili- 
ed Surfaces, and the Brightnefs of precious 
Stones. If too violent an Heat be given, 
inftead of fuch Cryftals, compound Figures 
will be formed, very fuddenly, refembling 
that at c, confifting of parallel ftrait Lines, 
pointed with large folid Spear-like Heads 
of Cryftal, along the Sides of which are 
placed, at right Angles, great Numbers of 
fmall Cryftals of the like Shape as the 
Drawing fhews.—If the Pleat has been 
little, though the fame Kind of Forms will 
be prefented, they will not appear till the 
Moifture be nearly dried away, when they 
will fhoot out with amazing Quicknefs. 
Some finaller Compofitions are alfo not 
unufually feen, as at d. 
But the Singularity of this Preparation is, 
that in forms Part or other of the Drop, you 
will feldom fail to find a very regular and 
well-fa£hioned two-edged Sword of Cryftal, 
forming under the Eye, in fuch Shape as e 
reprefents, though more exadt and well- 
proportioned: for fufpecting fuch a Figure 
might be fuppofed imaginary, lefs Regula¬ 
rity has been defignedly given it, than it 
will be really found to have. Sometimes 
two, three, or more, fuch cryftaline Swords 
are feen in the fame Drop. 
The 
