Being necessary and usefull,

TO THE WORSHIPFVL

M. Iohn Greaves , Professor of Geometry in Gresham Colledge London;

The Authors Preface.

THE FIRST BOOKE OF Peter Ramus's Geometry, Which is of a Magnitude.

The second Booke of Geometry . Of a Line.

The third Booke of Geometry . Of an Angle.

The fourth Booke, which is of a Figure.

The fifth Booke, of Ramus his Geometry, which is of Lines and Angles in a plaine Surface.

Of Geometry , the sixt Booke, of a Triangle.

Of Geometry, the seventh Booke, Of the comparison of Triangles.

Of Geometry the eight Booke, of the diverse kindes of Triangles.

The ninth Booke, of P. Ramus Geometry, which intreateth of the

The tenth Booke of Geometry , of a Triangulate and Parallelogramme.

Of Geometry , the eleventh Booke, of a Right angle.

Of Geometry the twelfth Booke, Of a Quadrate.

Of Geometry, the thirteenth Booke, Of an Oblong.

The fourteenth Booke, of P. Ramus Geometry: Of a right line

The fifteenth Booke of Geometry , Of the Lines in a Circle.

The sixteenth Booke of Geometry , Of the Segments of a Circle.

Of Geometry the seventeenth Booke, Of the Adscription of a Circle and Triangle.

Of Geometry , the eighteenth Booke, Of the adscription of a Triangulate.

Of Geometry the ninteenth Booke; Of the Measuring of ordinate Multangle and of a Circle .

Of Geometry the twentieth Booke, Of a Bossed surface.

Geometry , the one and twentieth Book, Of Lines and Surfaces in solids.

The twenty second Booke, of P. Ramus Geometry, Of a Pyramis .

The twenty third Booke of Geometry , of a Prisma .

Of Geometry the twentie fourth Book. Of a Cube.

Of Geometry the twenty fifth Booke; Of mingled ordinate Polyedra's .

Of Geometry the twenty sixth Booke; Of a Spheare .

Of Geometry the twenty seventh Book; Of the Cone and Cylinder.

Several few typographical errors have been corrected. They appear in the text like this, and the explanation will appear when the mouse pointer is moved over the marked passage. Cases which could conceivably be genuine variable orthography have been retained as printed. Many corrections are actually part of the arguments: no guarantee is given that all such errors in the text have been found and corrected.

In the original, 20 pages were printed with out-of-sequence page numbers, the numbers as printed being repeated in the index. These have been retained as printed but marked with an asterisk to distinguish them from the in-sequence pages which have the same number, thus 249*

Mixed fractions have been consistently transcribed as e.g. 5.5/96 although the period is not always present in the printed text (this avoids possible confusion of a hyphen, as 5-5/96, with a minus sign). The plus and minus signs in the printed text are apparently indistinguishable dashes - they have been transcribed as '+' and '-' as the context requires.