r iii I 
A D V E R T I S E M E N T. 
T H E Committee appointed by the Royal Society to dire<d the pub- 
lication of the FhUofopbical Tranfaftions , take this opportunity to 
acquaint the Public, that it fully appears, as well from the council-books 
and journals of the Society, as from repeated declarations, which have 
been made in feverai former Tr anf actions ^ that the printing of them was, 
always, from time to time, the fingle aft of the refpe&ive Secretaries, -till 
the Forty-feveuth 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 
circumdances of their affairs, the Tranfadions had 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 firfl inftitution by the Royal Charters, 
and which they have ever fince deadily purfued. 
But the Society being of late years greatly inlarged, and their com- 
munications more numerous, it was thought ad vifeable, that a Committee 
of their members diould be appointed to reconfider the papers read be- 
fore them, and fele<d out of them fuch, as they fhouid 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 fingularity of the fub- 
je&s, or the advantageous manner of treating them ; without pretending 
to anfwer for the certainty of the fa&s, or propriety of the reafonings, 
contained in the feverai papers fo publiflied, which mud dill red on the 
credit or judgment of their refpe&ive authors. 
A 2,.. * It. 
