[ *37 3 



XVIII. A Letter from Thomas Ronayne, 

 Efq'y to Benjamin Franklin, LL. ZX 

 F. R. S. inc/ojing an Account of fome 

 Obfervatiom on Atmofpherical Eleclricity ; 

 in regard of Fogs, Mifls, &c. with fome 

 Remarks y communicated by Mr. William 



S I RV. 



Head April 30, JN conformity to the deffre of fome 

 JL friends, I have drawn up the follow- 

 ing obfervations on atmofpherical eleclricity, which 

 I beg leave to lay before you ; and mall think the 

 trouble I have had, in profecuting the neceffary ex- 

 periments* fufficiently compenfated, if it mall appear 

 to you that, they contain any thing new or curious ; 

 in which cafe, you are at liberty to difpofe of them, 

 in whatever manner you mall think. proper. 



lam, SI R, 



With very refpectful confideration,. 



Your moft obedient- fervant 3 , 



Cecil-Street,, 



Feb - I5, I772t Tho s Ronayne. 



¥ql. LXII. X SOME. 



