Our Authour, in the declaration of the Elements hath many passages, which in our judgement doe not make so much for the understanding of the matter in hand, as for the defence of the method here used, against Aristotle, Euclide, Proclus, and others, which we have therfore wholly omitted. Some other things, which in our opinion, might in some respect illustrate any particular in this businesse, we have here and there inserted. Out of the learned Finkius's Geometria Rotundi, Wee have added to the fifth Booke certaine Propositions with their Consectaries out of Ptolomi's Almagest. The painfull and diligent Rod. Snellius out of the Lectures and Annotations of B. Salignacus, I. Tho. Freigius, and others, hath illustrated and altered here and there some few things.
The Contents.
Booke I. Of a Magnitude. Page [1]
Booke II. Of a Line. p. [13]
Book III. Of an Angle. p. [21]
Book IV. Of a Figure. p. [32]
Book V. Of Lines and Angles in a plaine Surface. p. [51]
Book VI. Of a Triangle. p. [83]