Front matter

Transcriber's Note.

Apparent errors in mathematical expressions have been retained, although apparent typographical errors elsewhere in the text have been corrected. Inconsistencies in hyphenation have been retained.

The decimal point may be indicated by a "." or "," while illustrations are referred to as a "Plate" or a "Tab."

The frontispiece probably depicts Charles II.

The Table of Discourses has been amended to include one omitted title and to correct erroneous page numbers.

Fifth roots and "nth" roots are indicated by 5√ and n√ respectively.

M: V^er Gucht Sculp: