( H9 ) 
therein, occalioned by the Wound received of the Spi- 
der, but I could difcover nothing, neither could I per- 
ceive that the Frog had got any harm, for the next day 
file was as brisk as if nothing had ail'd her. 
Now 'tis poffible, that the dinging of Spiders in hot- 
ter Countries may be more pernicious than in our Cli- 
mate ^ 'tis alfo poflible, that thi» Spider might have 
fpent his Poyfon lately, by wounding another Spider, or 
any other Creature. 
When I had kept this Frog, four days in my Glafs 
Tube, and found that he was never the worfe for the 
ftinging of the Spider, I threw her into the Water and 
obferved that (he endeavoured to fwim towards Land, to 
get out of the Water, as indeed all Frogs do in deep Wa- 
ters, for fear of being devoured by the Fifties. 
• I mentioned fomething before of the Blood of Spiders, 
which I have fince obferved again, and found that every 
Particle of Blood confifts of feveral other fmaller parts, 
and perfwaded my felf that each Particle was compofed 
of fix others, analogous to the Blood of our Bodies, and 
moreover feveral other little Particles, which were fome 
lefs than others 5 but thefe laft Particles were in no wife 
vifible till the fine Serum of the Blood was quite exhaled* 
Moreover, in viewing the Blood that came out of the - 
Feet that were cut oflp, I obferved that if I fpent any 
time in looking on it, the Serum would exhale, and the 
Salt Particles would cleave together like fo many fine 
Twigs or Branches, juft as the night-dews when congeal- 
ed againft our Glafs- windows ^ but when I left off look- 
ing, and laid the Glafs by, the air being cool, the Cri-: 
ftalizd Salts returned to their former fhape 5 and again, if 
I brought my warm hand but half a minute near the 
Glafs, all the Salt Particles were 'coagulated again 5 but 
with breathing a little on them they were quickly reduced 
to a clear Waier. 
This 
