[ 4^4 1 
ns notwithftandiog that the fpccific weights of the 
folid particles are truly heavier than water, wc (hall 
from the weights of the bodies as they are now com- 
pounded, be enabled to make fome judgment of 
their porofity, fo far as they may be penetrable by 
water or other fluids. 
TABLE VIII. 
Of Animal Parts . 
JMANATI Lapis. Boyle . . . 2.860 
D°. another. Boyle . . * .2.330 
Do. a fragment of. Boyle. . . 2.290 
Do. J. C. another from Jamaica. Boyle. 2.270 
Pearl, very fine Seed, oriental. Boyle. V. 
12. a. . . . . . 2.750 
D°. a large one, weighing 206 grains. 
Boyle V.y.b. , . .2.510' 
Murex Shell. J.C. . . . 2.590 
Crabs Eyes artificial. Boyle. . . 2.480 
D°. native. Boyle. . . . 1.890 
Os ovinum recens. Breind. . . 2.222 
Oyfler Shell. J.C. . . . 2.092 
Calculus humanus, 1 juft voided. ‘Davies. 2.000 
Do. Boyle. V. 7. b. _ 1.760 
Do. Boyle . . . . . .1.720 
D°. Cotes. . . , 1.700 
D°. Boyle. V. y.b . . . 1.690 
.... 1.664 
D°. Davies. . . . .1.650 
p°. Boyle . e . 1.470 
D°. 
