C 97 3 
well-grounded expectations fo far fulfilled. May this 
method of fecurity from the dedruftive violence of 
one of the mod; awful powers of nature meet with 
fuch further fuccefs, as to induce every good and grate- 
ful heart to blefs God for the important difcovery. 
May the benefit thereof be diffufed over the whole 
globe. May it extend to the latefl pofterity of man- 
kind; and make the name of Franklin, like that of 
Newton, immortal.. 
F am. Sir, with fincere refpeCf, 
your mod: obedient, and 
molt humble fervant, 
Ebenezer Kinnerfley. 
— ■« — — — 
XXIII. Observations in FleSiricity and on a 
‘Thunder-Jlorm : In a Letter from Mr. Tor- 
bern Bergman, to Mr. Benjamin Wilfon, 
F. R. S. Acad. Reg. Upfal. Soc. 
Ampliflime atque Celeberrime Domine, 
Read April 14, TT ]SJ epiftolis recentifiimis, quibus me 
X honoradi, experimenta domini Dela- 
val circa eleClricitatem cryftalli Idandicee commemo- 
ras. Pluries hascce tentamina iteravi, fed conftan- 
ter eventu prorfus contrario. Scilicet in hunc finem 
varia hujus cryflalli frufta frigori 12 graduum expofui, 
Vol. LIII. P in 
