[ 341 ] 
THESE letters containing a fatisfa(5lory anfwer to the 
queftions which precede them, the following remarks 
naturally prefent themfelves . i ft, A fharp pointed con- 
ductor did not, in this inftance, invite or draw down upon 
itfelf a ftroke of lightning. 2dly, Such a condu6tor, 
elevated five feet above the top of one of the chimnies, 
to an houfe of this dimenfion, may not perhaps he fuf- 
ficient, by its filent attractive force, to protect the whole 
of fuch a building from a ftroke; efpecially when a 
chimney, a blunt body^ wetted with the rain, ftanding at 
fifty feet diftance from the condu61or, and being within 
five feet of its height, is in actual contact with fo large, 
though irregular, a communication of metal, leading 
from the chimney directly to the conductor ; though, in 
this inftance, it fliould be remarked, that the conductor 
itfelf zvas not in contaSi throughout ; and it is, for that 
reafon, a very exceptionable cafe. S^ly? Two fuch 
conductors ; one, for inftance, on the chimney (^/), where 
this was placed ; and the other, on the chimney {b)^ which 
was ftrieken, with a communication of lead between 
them, would probably have protected the houfe : but a 
conductor on each chimney would certainly have fecured 
the whole building effectually 4thly, As the three 
branches: by divifions of the lightning all concentrated 
upon an iron bar, three quarters of an inch fquare^ and- 
produced no fign of heat in it, an iron bar of that fize 
feems to be fully fuffiicient for the purpofe. There ap- 
{b') This method, I am informed, Mr. haffenden hath lately adopted, 
6 pears, 
