( 5II4 ) 
it even in the day time to three or four very iDgenious 
^Phyfitians, all of them ("fave onej members of the R, So- 
-ciefj!^ 2itid I prefume 1 need not re-mind you, that the 
following night I iovited you to be a fpeBator of it, though 
before that time the light had begun to decay and the of= 
fenfive fmell to grow fomewhac ftrong : which feems to ar- 
.guc, that the difpofition, upon v/hole account our Veal 
was luminous, may very well coofift both with its being 
;and not being in a ftate of putrefaUion, and confequeotly 
is not likely to be derived raeerly from the one or the o- 
ther. The fifth day, in the morning looking upon it when 
I awaked, and before the curtaios were ©pened^it feemed 
to fiiine better than it had done the day preceding. The 
fame night alfo it was maoifeft enough^ though not vivid^ 
inthedarko When I awaked, the fixthday in the morn* 
ing after the Sun was! rifenj I could within the Curtain per^ 
ceive a glimmering light* But the feventh day, which 
wasyefterday, I could not late at night difcern any light 
at alL 
Youfaw too mudi in what a condition I was, when you 
did me the favour to vific mc, to expedl that I fliould pre- 
fume to entertain you with any Speculations about the 
caufeofthefe UDufual apparitions of light. *Tis true in- 
deedjthat in fomenotes, I formerly mentioned to you, I 
endeavoured to make it probable, that whether Light de- 
pend upon a particular kind of Impulfe propagated 
-through a tranfparent Medium 5 or upon a DifFufion of ex- 
treamly little parts from the Luminous body • or upon the 
Adtion of fome other corporeal agent 5 whatever the Effi» 
cient be, the EfFeftis produced in z 'Mechanical way* But 
though I had thefe papers by me 3 yet to determine what 
peculiar Kind of motions or other operations Nature real- 
Jy imployed in the produdion of a light, which feemed not 
clearly Chy what I fliall prefently note) referable either to 
the particular and fetled conftitution oi the j^tiimah ^whok 
:flefli fhinedj(as iaour Glowormsand lomcj^mericm tiles i) 
or 
