The first booke declareth the definitions of the termes and
names vsed in Geometry, with certaine of the chiefe grounds
whereon the arte is founded. And then teacheth those
conclusions, which may serue diuersely in al workes
Geometricall.
The second booke doth sette forth the Theoremes, (whiche maye be
called approued truthes) seruinge for the due knowledge and sure
proofe of all conclusions and workes in Geometrye.
The third booke intreateth of diuers formes, and sondry
protractions thereto belonging, with the vse of certain
conclusions.
The fourth booke teacheth the right order of measuringe all
platte formes, and bodies also, by reson Geometricall.