12 Method of preparing 
unconceiveable, conipofed of an Inf nity of 
Parts, which are adjlifted to each other with 
an Elegance, Regularity and Order, beyond 
what the exadeft Pencil in the World, 
guided by the Ruler and Compaffes, can ever 
equal, or the mod luxuriant Imagination 
fancy. 
When Addon once begins, the Eye can¬ 
not be taken oft, even for a Moment, with¬ 
out loftng lbmething worth Obfervation : 
for the Figures alter every Inftant till the 
whole Procefs is over ; and in many Sorts, 
after all leems at an End, new Forms arife, 
different entirely from any that, appeared be¬ 
fore, and which probably are owing to fome 
fmall Quantity of. Salt of another Kind* 
which the other leparates from and leaves 
to a cl after itielf has done: and in fome 
Subjects three or four different Sorts are ob- 
fervable, few or none being fimple and ho¬ 
mogeneous. ; 
When the Configurations are fully form¬ 
ed, and all the Water evaporated, mod Kinds 
of them are foon deftroyed again by the 
Moifture or Addon of the Air upon them ; 
their Point&and Angles lofe their Sharpnefs, 
become uneven and defaced, and moulder 
as it were away. But fome few are perma^ 
nent, and by being indexed between Glades, 
as I fhall dired hereafter, may be preferved 
Months, or even Years, entertaining Objeds 
for the Microfcope. 
IV. 5 ; 
