Whereas there have lately appeared in publick some _Books_, printed beyond the Seas, treating of the Way of _Injecting liquors into Veines_; in which Books the _Original_ of the _Invention_ seems to be adscribed to others, besides him, to whom it really belongs; It will surely not be thought amiss, if something be said, whereby the true _Inventor's_ right may beyond exception be asserted & preserved; To which end, there will need no more, than barely to represent the _Time_ when, and the _Place_ where, & among whom it was first started and put to tryal. To joyn all these circumstances together, 'Tis notorious, that at least six years since (a good while before it was heard off, that any one did pretend to have so much as thought of it) the Learned and Ingenious Dr. _Christopher Wren_ did propose in the _University_ of _Oxford_ (where he now is the Worthy Savilian Professor of _Astronomy_, and where very many Curious Persons are ready to {129} attest this relation) to that Noble Benefactor to Experimental Philosophy, Mr. _Robert Boyle_, Dr. _Wilkins_, and other deserving Persons, That he thought, he could easily contrive a Way to conveigh any liquid thing immediately into the Mass of Blood; _videl_: By making Ligatures on the Veines, and then opening them on the side of the Ligature towards the Heart, and by putting into them slender Syringes or Quills, fastened to Bladders (in the manner of Clyster-pipes) containing the matter to be injected; performing that Operation upon pretty big and lean doggs, that the Vessels might be large enough and easily accessible.