Figures of Sea-Saif, 5 5 
fj*- An hollow Body, whole Top is a large 
tranfparent Square, and whofe Sides are 
darkilh in the Middle, but very trans¬ 
parent at the Ends, whereby the four 
Corners become alfo tranfparent. 
1 - A very pretty tranfparent truncated pyra¬ 
midal Figure, whofe Top is alfo a tranf¬ 
parent Square, and whofe four Corners 
appear to open and Separate, 
]i - A Solid Cube, femi-tranfparent. 
/-Another Cube, which by its Polition, if 
carelefsly examined, will probably be 
miftaken for an Hexagon. 
m - A Square Plate of fome Thicknefs, but 
tranfparent: its Situation makes it feem 
a Rhombus. 
pn - Two oblong Plates, extremely thin and 
tranfparent, with a Spot in the Midft 
of each. 
PLATE I. N p II, 
Figures of Sea- Salt. 
ff-A Square Pyramid, hollow, and pretty 
tranfparent, wherein a Kind of Steps 
appear gradually lelfening upwards. 
P - Another Figure about half the Height of 
the preceding, whofe Top is a very 
tranfparent Square Plane, and whofe 
four (loping Sides are graduated and 
conliderably tranfparent. 
p 4 PLATE 
