hout, in the txamm:ition of exferimental am real Kjiowledge^ And. 
ivhat Difcoveries they h^ve made in any part thereof , The Royal 
Society have therefore thought ft to order ^ th.it Care he taken for 
the future^ that fuch Accounts jhall e fMjhcd in tlefe Tranfacli- 
ons Monthly-, ^ niaj anfmr their e:^:f eolations : Wherein will be 
contained not only f everal Experimencs, Invented and try :d by di- 
vers of their own Body, hut aljo juch other ufcful Difcourfes or Re- 
lations comerning Phyfical , Mathematical, and MechaniG2{l 
Theories Obfervations (halUe commimtcaed by their Cor- 
refpondants y^r that Intt nt^ or ftJ .tll ctherwife be font to^ or collect- 
ed by the Per (on that hat/j enggedlifK/elf in this Vnd^er taking. 
doth therefore here, y Ad vert if e allfuc/j Curious Perfons as jhall be 
defirom to fromote this Defgn, ly Contributing what fh all occur to 
them thdt may he ujeful thereunto ythat ufon their Communications 
they (hall ha . e fuch Acknowledgments made them as jhall be to their 
fatisfaclion. . 
And nijereas divers Books and Treatifes of fuch Philofbphicai 
Matters as fdl under the Societies Confu eration^ are fuhltihed in 
foreign PartSj which are feliom to be found ttll fome years after ^ if 
At all^to the great damage both of the Autliors and the Printers t?/ 
them^ and moreeffcciallyto the Inquifttive of this Nati n : It is 
therefore d/e fired and hoped that for the future^ all fuch Authors or 
Publifihers,^//^^*^ Ingeni us Gentlemen as jhall in their Travels 
meet with fuch Books or TraSs, will he j^leajed to fend or lend 
th m to the ^ ndertaker of this Affair ^ that fo an imf^rtial Account 
And Extr It of them may be communicated to the C-uriom. 
And tho upon an extraordin ry occafion thefe Tranfafbions 
have for fome M:?iths laH fajl been omitted^ yet that defeB will- be 
foon fupplyed by the Jpeedj Publication of what has occurred, frnce 
D.'cember lofty and will he for the future continued at 4e2ft^4ts 
f-mci'Aad) as heretofore. 
Tb f : that deftre to Contribute to the carrying on of this Woriy 
mav ple^fe to fend the Accounts they would have Printed to Mr. 
H. Munt at Grefham CoUedgeX^Qiidon^for the Secretaries of the 
Royal Society. 
