I made the like Tryal with redified Ojl of Turf mine , with a 
not unlike fuccefs. The fame Experiment I tried more than 
once with highre(aifi*d Sfirit oiwine ^ which did immediately - 
dcftroy all the light of the Wood , that was immerfed in it; 
and having put a little of that liquor with my finger upon a pare 
of the whole piece of Wood, that (hone very vigoroufly, it quick- 
ly did, as it were, quench the Coal as far as the liquor reached; 
nor did it in a pretty while regain its luminoufnefs : ( which whe- 
ther it recovered at all, I know not ^ for this Trial being made 
upon my Bed , I fel afleep , before I had waited long eaough to 
finifli the Obfervation. ) 
As a quick Coal hnottobeextinguifht hj theCddnefs of the 
Air, when that is greAtcr than erdinarj , fo neither is a piece ef 
(Shining Wood to be deprived of its l^ht by the fame ([tidity of 
Air. 
As much ofthisObfervation^. as concerns the O^^/, will be 
readily granted 5 and for proof of theotherpart of it, I could 
relate to you more Trials, than one, bm that I fuppofe , one may 
ftifficc, circumftanc'd like that , which I (hall now relate. ^ 
I took a fmall piece of shining Woody and pat it into a fletii-' 
der Glafsrpipe fcaled at one end , and open at the other , and 
placed this Pipe in aGjafs Vefifel, where I caufed to be put a 
ftrongly frigorifick mixture of ice and Salt , and htving kept it 
there full as long , as I thought would be requifice to freeze zn 
Aqueous Body, lafterwards tookitout, and perceived not any 
fenfible Diminution of its light. But to be fure , the frigorifick 
mixture ffiould not deceive me , I had placed by this Pipe ano- 
ther , almoft filled with Water, which 1 found to be turn*d into 
/r^s and though IfufFcred the Wbod to remain, a pretty while 
after, expofcd to fo intenfe a Cold, yet when I took it out , it 
continued (hining , and, if I much miftake aoc , it ceafed not to 
dofo, when I lookt on it, 24. hours after. But though the 
light of Shining Fijh be ufually (as far as I have obferved) morp- ^ 
vigorous and durable, than that of Shining Wood^ yet I cannot 
fey, that it will' hoL out againft Cvld fo well , as the other. 
For ^ having ordered one of my fervants to cut off a good large 
piece of the luminous Whiting , and bury it in lee and Salt , whea 
I call:d for it ii) left thaa half aa hour afterj found it much ftiffn'd 
