Royal Society. 337 
they come to creep, as filk- worms do that have no legs, with a 
very brifk and fwift motion • when they come to their ul'ual big- 
nefs, they hide themlelves as much as they can, and with the filk 
they ipew out of their mouths, they make a Imall bag round 
themfelvcs, which is on the infide as white as paper, but on the 
outfide is always dirty, and fouled with duft 5 the bags appear to 
the naked eye of the bignels of Fig. 2. In two weeks more in the 
fummer-lealbn the flea is perfectly formed, then it ibon leaves its 
JBauvice in its bag, as (ilk-worms and all catterpillars do^ the 
flea, all the time it is inclofed in the bag, is milk-white, and has 
legs 5 but two days before it comes out, it becomes another colour, 
grows hard, gathers flrength, {o that upon coming out it leaps 
Itreight away. 
Fig. 5. reprefents the eggs; Fig. 4. the worm j Fig. 5. the 
bag 5 Fig. 6. the flea 3 but all magnified by the microfcope. 
Two clear inflammable Liquors, -whlcb upon Mixture give a 
Carnation Colour ^ by Mr. GeofFery. Phil. Tranli N° 249. 
p. 43. 
TO make the firfl of thefe liquors, put a fmall handful of 
dried red roles into a glals-bottle, pour on them reflified 
fpirits of wine to the height of an inch ; let them infufe for four 
or five hours in the cold, then pour off the fpirits, which will 
be clear and colourlels. 
The fecond liquor is made by putting fbme drops of good 
fpirits of vitriol, or oil of fulphur, into good fpirits of wine, 
fo that the acid tafte can fcarce be felt by the tongue 5 if you put 
a little of this laft liquor into the firfl, it will give a fine reddi/h 
colour, without any effervefcence or other fenfible alteration j if 
inflead of this wine mixed with acids, you put to the firll fome 
drops of any volatile alkalies, as of fpirits of Sal-armoniac^ or 
any fuch, it will give a green colour to the infufion. 
Seeds to clarify Water -^ by Hans Sloane, M, 1>, Phil. Tranf 
N° 245?. p. 44- 
THESE feeds come from the coaft of Cor Oman del ^ or 
Malabar^ they are about the bignefs of a fmall pea, only 
broader and flatter, having Strias^ or creafcs, running from their 
centre after the manner of the common l>^u% Vomica-^ in the 
Eaft -Indies they rub or grate them on the bottom of a fmall 
earthen balbn, wherein is contained fbme watery this water and 
powder are put into a large quantity of muddy or foul water, 
and it is clarified thereby. 
Vol. III. ' U u ^ Comet, 
