Imatges de pàgina
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And that each Reader may the better inform himself, not only of what Sort my prefent Obfervations are, but fee in what Manner also, and with what kind of Accuracy they were made, 'twill be convenient to give fome Light into that Matter, and to begin with an Account of them; whereby he may be enabled to judge how far they may be rely'd upon, and what Measure of Affent the Propofitions which I draw from them may claim.

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But before I go any farther, İ ought to put in a Caution, that an ample and prolix Relation either of the Obfervations themselves, or of the Deductions from them, is not to be expected here. I intend this but for a Scheme of a larger Design, and as a Sample of what I hope, in good Time, more fully to difcufs and make out propofing no more, in this Treatife than only, in a few plain Words, to deliver my Sentiments on certain Heads of Natural Hiftory, with fome of the Reafons and Grounds of them, in order to give fomewhat of prefent Satisfaction to the Curiofity and Demands of fome of my Friends, BrA

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