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A D V E R T I S E M E N T. 
T HE. Committee appointed by the Royal Society to direct the pub^ 
lication of the Fhilofophical Tranfafiions, take this opportunity to 
acquaint the Public, that it fully appears, as well from the councihbooks. 
and journals of the Society, as from repeated declarations, which have 
been made in feveral former Tranf actions, that the printing of them was. 
always, from time to time, .the Angle act of the refpective Secretaries, till 
the Forty-feventh Volume : the Society, as a body, never interefting them- 
felves any further in their publication, than by occafionally recommending 
the revival of them to fome of their Secretaries, when, from the particular 
circumftances of their affairs, the Tranfaffions had 1 happened for any 
length of time to be intermitted. And this feems principally to have 
been done with a view to fatisfy the Public, that their ufual meetings 
were then continued for the improvement of knowledge, and benefit of 
mankind, the great ends of their firft inflitution by the Royal Charters), 
and which they have ever fince fleadily purfued. 
But .the Society being of late years greatly inlarged, and their com- 
munications more numerous, it was thought ad vifeable, that a Committee 
©f their members fhould be appointed to reconfider the papers read be- 
fore them, and fele& out of them fuch, as they fhould judge mod; pro- 
per for publication in. the future Tranfadions ; which was accordingly 
done upon' the 26th of March 1752. And the grounds of their choice 
are,. and will continue to be, the importance and : Angularity, of the fub- 
jecls, or the advantageous manner of treating them without pretending, 
to anfwer for the certainty of the faffs,, or propriety of the reafonings, 
contained in the feveral papers fo publifhed, which mud: ft ill reft on the 
credit or judgment of their fefpcciiye authors. . 
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