Page:Philosophical Transactions - Volume 003.djvu/194

 before, the other after) it might well give occasion to think it was depending on the Æquinox.

Moreover, the curious Reader may be pleased to compare this Account with that, which was given concerning the Tydes observed at Plymouth, Numb. 33. p. 633, and to take notice, that the difference of the Day-tyde from the Night-tyde, agrees in both, (of which the reason may be considered;) but, as to the difference of the increase and decrease of the-Water about Bristol from what Mr. Colepress observed at Plymouth, that may much depend upon the position of the places; that of Plymouth being out to the Sea, this near Bristol being on the Severn far within Land.

Whilst the Reader is comparing this Information; with that of the lately cited N°. 33. he will meet there pag. 633. in the last line, with the word perpetual, which he is defied to change: into proportional; which indeed should have been intimated much sooner.

O, pass by many curious Observations touching the Vegatable and Animal Sphere, (which I reserve for another occasion) I shall now entertain you only with some of the Observables, I meet with about Minerals in the kingdom of Mexico whither I travell'd A. 1664, under the Character of a Biscaner, by the recommendation of a friend in the same Ship; that carried thither a New Vice-roy of Mexico, remaining in that Country almost two years in continual studies and researches, especially about Minerals and their Generation, Separation, &c.

And indeed Nature hath so prodigally enriched this Country with all sorts of Minerals, both perfect, imperfect and mixt that the almost overwhelms the Observation of the most diligent and most curious Naturalists, I have dealt with the skilfullest Minemen in those parts, but I found them to know of, and care for little in the matter of Minerals, but Gold and Silver. Some of them Rh