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XCI. Letters of the Abbe Mazeas, F. R. S . 
to the Rev. Stephen Hales, D. D , F. R. S. 
concerning the Succefs of the late Experi- 
ments in France. 7/ an (lated from tht 
French by James Parfons, M. D. F. R. S. 
SIR, St. Germain, May 20, 1752, N.S. 
Read May 28,/ | ^HE favour done me by the Royal 
* Society obliging me to intereft 
myfelf in whatl'oever concerns their honour, I beg 
you will communicate the following account. 
The Philadelphian experiments, that Mr. Collin- 
fon, a member of the Royal Society, was fo kind as to 
communicate to the public, having been univerfally 
admired in France, the King defired to fee them per- 
formed. Wherefore the Duke D’Ayen offer’d his Ma- 
jefty his country-houfe at St. Germain, where M. de 
Lor, matter of experimental philofophy, fliould put 
thofe of Philadelphia in execution. His Majefty faw 
them with great fatisfaCtion, and greatly applauded 
Meftieurs Franklin and Collinfon. Thefe applaufes 
of his Majefty having excited in Meftieurs' de Buffon, 
D’Alibard, and De Lor, a delire of verifying the con- 
jectures of Mr. Franklin, upon the analogy of thun- 
der and electricity, they prepar’d themfelves for make- 
ing the experiments. 
M. D'Alibard chofe, for this purpofe, a garden 
fituated at Marly, where he placed upon an electri- 
cal body a pointed bar of iron, of 40 feet high. On 
the 10 of May, 20 minutes paft 2 afternoon, a ftormy 
cloud 
