L 8*3 1 
XXX VII. Experiments on Ek&rlclty , being an Attempt to 
Jhew the Advantage of elevated pointed Conductors. By 
Mr. Edward Nairne, F. R. S. 
*N. B. This paper is mifplaced through a miflake of the Secretary’s - 3 it ihoult! 
have been inferted before Dr. musgrave’s. 
Read jane 18 and 25, ^4 DIFFERENCE of opinion pre- 
■*- vailed feme time ago and has of 
"late been revived, in regard to the termination of con- 
ductors for the prefervation of buildings from the effeCts 
•of lightning. 
OO* 
Some gentlemen think that they fhould not termi- 
nate in a point, but be blunted; and alfo that they 
fhould not exceed the higheft part of the buildings^; 
they likewife think, that to prevent lightning from 
doing mifehief to great works, high buildings, and 
large magazines, the feveral buildings fhould remain 
as they are at top, that is, without having any metal 
above them, either pointed or not, by way of a con- 
ductor; but that on the infide of the higheft part 
of fuch a building, and within a foot or two of the 
top, it may be proper to fix a rounded bar of me* 
(a) Mr. Wilson’s new Experiments on the Nature and Ufe of Conduc- 
tors, p. 7„ 
tal, 
