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to drive 3 Mills not far from its source. The Inhabitants call it the Bolderborn, as if you should say, the Boysterous Spring.
The same Person, having mentioned the many Salt-Springs in Germany, as those at Lunenburg, at Hall in Saxony, at Saltzwedel in Brandenburger Mark, in Tyrol, &c. observes, that no Salt-water, which contains any Metal with it, can well be sodden to Salt in a Vessel of the same Metal, which it self contains, except Vitriol in Copper Vessels.
He adds, that, to separate Salt from Salt-water, without Fire, if you take a Vessel of Wax, hollow within, and every here tight; and plunge it into the Sea, or into other Salt-water, there will be made such a separation, that the vessel shall be full of sweet water, the Salt staying behind: but, though this water have no saltish taste, yet, he saith, there will be found a Salt in the Essay, which is the Spirit of Salt, subtile enough with the water to penetrate the Wax.
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 that 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 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 at-
