(^oo) 
Sabjei^- and therefore I ftiall here conclude this Paper, as foon 
as 1 have added this Confirmation, as well of what I laft related 
as of fomething that 1 obferved before, That having incladcd In 
fmall Receivers two pieces of rotten Whitings^ whereof the cn? 
before it wis put in, fcarce (lione fo vividly/as did the other after 
the Receiver was exhaufted and having ordered the matter fo, 
that we were able co iceep out the Air for fome days, at the end of 
about 48 hours we found, that the more ftrongly (hining Body 
retained yet a deal of Light. But afterwards looking upon them 
both in a dark place, we could not perceive in eith-r any (how of 
Light. Wherefore having let in the Air into that Receiver y 
whereinto the 5ody that at firft fliined the faintlier had been pur> 
there dii not enfue any glimmering of Light for apre ry while ; 
nay, upon the lufliing in of the Air into the other Glafs (then al- 
fo madeacceffible to the Atmoffhere^ the body that at firftflione 
fo ftrongly, and that continued to fliine fo long, (hewed no glim- 
mering of Light. 5ut being refolved to expeft the ifl'ue a while 
longer, our patience was rewarded within lefs than a quarter of 
an hour with the fight of a manifeft Light in the 2?ody laft named, 
and a while after the other alfo became vifible, but by a light ve- 
ry dimm. The more luminous of thefe todies I obferved to re- 
tain fome Light 24 hours after : and the hitherto recited Experi- 
ment had this peculiar Circumftance in it, That the two Recei- 
♦ mm method vers were un-interruptedly kept exhaufted no lefs 
ZrTtli!fE.^ ^^"^ "^^^y^^ '""^^' ""^"^y ""'^^^^ 
periments ufed inJieeping out tU Air for fo hnga time, tfillpnbably be mude linowit 
tre long by hdmfelf. 
An Account of two Books. 
I. PATHOLOGIiE CEREBRI & NERVOSI GENERIS 
SPECIMEN; in quo agitur de MORBIS CONVULSI- 
VIS & SCORBin O, ftudio THOM^E WILLIS, M. 
WHat this excellent Author formerly promifed of the whole 
fathologfoi Brain and Nerves^ he gives in this 5ook a 
very confiderable Sfscimen of. The knowledge of the Difeafes 
which ufe to affeil thefe parts, is efteemed verydifficalt and in- 
tricate, and particularly the true Caufes of Convulftons are of a 
vcEy deeprcfearch. For the clearing them up, this Author Phi- 
lofophifcth 
