will be euident vnto you: So the pith and force therof, will persuade
you: and the wonderfull frute therof, highly pleasure you. And that you
may the easier perceiue, and better remember, the principall pointes,
whereof my Preface treateth,

[The Ground platt of this Praeface in a Table.]

I will giue you the +Groundplatt+ of my whole discourse, in a Table
annexed: from the first to the last, somewhat Methodically contriued.

If Hast, hath caused my poore pen, any where, to stumble: You will,
(I am sure) in part of recompence, (for my earnest and sincere
good will to pleasure you), Consider the rockish huge
mountaines, and the perilous vnbeaten wayes, which
(both night and day, for the while) it hath
toyled and labored through, to bryng you
this good Newes, and Comfortable
profe, of Vertues frute.

So, I Commit you vnto Gods Mercyfull direction, for the rest:
hartely besechyng hym, to prosper your Studyes, and
honest Intentes: to his Glory, & the Commodity
of our Countrey. _Amen_.

_Written at my poore House
At Mortlake._

_Anno. 1570. February. 9._

[Decoration]

[Transcriber's Note:

The "Groundplat" was printed in the form of a stemma, or tree, on an
oversized fold-out page. The layout was impossible to reproduce for
this e-text, so the information has been rearranged in nested-list
form. Size markings (see note at beginning of e-text) are relative
within each paragraph.]

_J. DEE_

+%Here haue you (according to my promisse) the Groundplat of%+
+my MATHEMATICALL Praeface: annexed to _Euclide_ (now first)+
published in our Englishe tounge. An. 1570. Febr. 3.

+%Sciences, and Artes Mathematicall,% are, either+

+%Principall,% which are two, onely,+

+Arithmetike.+

+%Simple%+, Which dealeth with Numbers onely: and demonstrateth
all their properties and appertenances: where, an Vnit, is
Indiuisible.
+%Mixt%+, Which with aide of Geometrie principall, demonstrateth
some Arithmeticall Conclusion, or Purpose.

+Geometrie.+

+%Simple%+, Which dealeth with Magnitudes, onely: and
demonstrateth all their properties, passions, and
appertenances: whose Point, is Indiuisible.
+%Mixt%+, Which with aide of Arithmetike principall,