C 34 3 
in his pretence, by one of its ends, feventy-nine ounces' 
and nine peny weight. 
That he had alfo been fhewn a flat femicircular 
fteel magnet, weighing an ounce and thirteen peny- 
weight : and that the fame had lifted before him, by 
applying its two ends together to an iron wedge, 
ninety troy ounces. 
That he had likewife been told by Mr. Canton 
at the fame time, in what manner the virtue might 
readily be taken away from any of his bars, which 
experiment he had alfo feen him put in practice. 
And that Mr. Canton had moreover changed in his 
prefence the poles of a natural loadftone, by placing 
it in an inverted direction, between the contrary poles 
of two of his larger bars, laid down at fome diftance 
from each other, in the fame ftrait line continued : 
and that he had even performed this, without touch- 
ing the ftone with either of the bars, and only by 
placing it, in the manner juft mentioned, between 
their poles, at the diflance of about a quarter of an 
inch from either of them. 
A Method of making Artificial Magnets 
without the ufe of , and yet far J up erior to, 
any natural ones . 
P Rocure a dozen bars ; flx of foft fteel, each three 
inches long, one quarter of an inch broad, and 
one-twentieth of an inch thick, with two pieces of 
iron, each half the length of one of the bars, but of 
the fame breadth and thicknels j and fix of hard fteel, 
each 
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