( 441 ) 
tranfparent perform’d much alike 3 if there was any diffe- 
rence, it feem’d to incline to that part lin’d with the Sul- 
phur. Likewife in this Experiment as in the laff, the Sul- 
phur was loofen’d and feparated from the Glafs that con. 
tain’dit: Which therefore cannot be urg’d, as any ways 
conducible to the Unfuccefsfulnefs of the former. 
A Repetition of this lafi Experiment with a larger quantitj 
of Sulphur^ 
Into a Globe Glaf^j of the fame fize of the former,’ 
which was about five Inches Diameter, I pour’d about 
two Pound of melted Sulphur: This, when cold, contra- 
< 3 :cd it felf, and became loofe from every part of the Glafs, 
as in the former Experiments: The Sulphur cover’d more 
than half the inward furface of the Globe, and its thincft 
part was about half an Inch in thicknefs. Towards the 
Axis it appear’d to be more than a full Inch in Sub- 
ftance. This Glafs, when exhaufccd of its Air, was ufed 
in every thing as tHe former. The Light produc’d was 
very confiderable, I mean that on its outfide, and attend- 
ed with the fame Colour and Vivacity as before ; nor 
was that lefs vigorous on its infid(?. Comparing it with 
the former, notwithftanding the thicknefs of the Lining, 
it was at leaft four times greater^ but the Figure of the 
Fingers was now not fo dihinguifhible as in the other. 
But on the part near the Axis (as I hinted before ) where 
the fubftanc® of the Sulphur was much the greateft, no 
Light was produc’d 3 which may be attributed in a great 
raeafure to the ilownefs of the motion and the weaknefs 
of it there, ia comparifon with that which is made more 
remote from if, where it was that the Light w'as feen 
within. What farther is obfervable, was that the Light 
-which was vifible on its outfide only, appear’d to be 
U u u produc’d 
