X 
DEDICATION, 
>> 
ing Truth, is, by the Experiments of 
Many upon the fame Subject; and 
the mod probable Way of engaging 
People in inch Experiments, is, by 
rendering them eafy, inteliigible,and 
pleafant. To efiedr this, is my En¬ 
deavour in the following Treadle, 
which may ferve as the Reprefenta- 
tion of an Objed for the Inftnmient 
I am recommending; fmall, indeed, 
and feemingly of no Confequence ; 
but what, upon Examination, will 
be found, perhaps, to contain as 
many ufeful Parts as thofe that are 
much bulkier: for, to drop the Allu- 
fion here, I am certain, that with 
half the Pains I could have made it 
twice as large,. 
Think me not fo prefumptuous, to 
dream of inftruding you, in Matters 
vou are much better acquainted with 
/ 
than 
