Rock, Spring, and Sea-Salt . 53 
even to the naked Eye by the Salt made 
after Mr. Thomas Low?idess new Method, 
where Multitudes of fuch regular pyrami¬ 
dal hollow Bodies may be found, compofed 
as it were of a Number of little Stairs ; and 
fo large, that each Side of their fquare 
Bafe is at leaf: a Quarter of an Inch in 
Length *. 
None of thefe Salts afford any Branch¬ 
ings out: the Appearances round the Edges 
of the Drop, when Heat is applied, being 
nothing elfe but a Congeries of faline Par¬ 
ticles hurried together with very little Re¬ 
gularity, and producing no new Forms: 
for which Reafon thefe Combinations are 
not reprefen ted in a Drop, as all that fhoot 
into Figures more different are. But not- 
withfanding the general Shape of thefe 
Bodies is nearly the fame, there are parti¬ 
cular Differences very well worth pbferving, 
which the Drawings endeavour to exprefs. 
Is fufFered to (hoot into its true Form, its Cryftals are found 
of a cubical Figure of various Sizes: and many of thefe 
fmaller Cryilals are united together into hollow Pyramids 
with a fquare Bafe. Thefe Pyramids are truncated, being 
not finifhed at the Top, but having there fixed a Cube of 
Salt of a more than ordinary Bignefs. 
* Mr. Lo-wndes fays, “ in the Salt made by the Sun, as 
f ‘ well as by my Way, you will never fail of feeing very 
<{ many little Pyramids, which are compofed of a Parcel of 
“ fmall cubical Grains piled up in a moll exafl Order, and 
“ cemented together with wonderful Nicety : and the 
“ Crowns of thefe Pyramids are always Cubes of a much. 
“ larger Size than any of the reiT. ?> Vid. Brine Salt im¬ 
proved, p. 16. 
e 3 
PLATE 
