Fourthly, To give, as Opportunity offers, the Abſracts or Accounts: of ſuch Books, relating to the Ends of the Royal Society's Inſtitution, at the Authors ſhall pleaſe to communicate themſelves; which ſhall be diſtinguiſhed from others: or of ſuch as are with diffculty to he procured in England, or extraordinary in their kind; upon which there shall ſometimes be added ſome Remarks.
To this Undertaking the Publiſher invites and deſires all real Lovers of Knowledge to contribute their Aſſiſtance, by communicating their Obſervations, Diſcoveries, or Inventions; which ſhall not only be faithfully and duly Publiſhed, with due Acknowledgment; but ſome Returns made them, by Informations of what ſhall be thonght acceptable to the Gentlemen, who ſhall think fit to entertain a Philoſophical Correſpondence: Who are deſired, in any Tract or Diſcourſe they ſhall ſo communicate, to omit all Perſonal Reflectſions; for if ſuch should happen to be inſerted the Publiſher shall take the liberty of leaving them out; it being his Opinion, that Diſputes on Philosophical Subjects, may be managed with the utmoſt Candor, Reſpect and Friendſhip by the Diſputants, whoſe only Aim ought to be the Search of Truth.
The Gentlemen willing to encourage this Undertaking, are deſired to direct their Letters, To be left at the Royal Society's House, in Crane-Court, in Fleetſtreet, London, for the Secretary of the ROYAL SOCIETY.
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