To be inserted in Vol. I. page 97. line 22. after these words (practicable or imagi∣nable) beginning a new paragraph.
To whatever side mathematicians turn, this dilemma still meets them. If they judge of equality, or any other proportion, by the accurate and exact standard, viz. the enu∣meration of the minute indivisible parts, they both employ a standard, which is use∣less in practice, and actually establish the in∣divisibility of extension, which they endea∣vour to explode. Or if they employ, as is usual, the inaccurate standard, deriv'd from a comparison of objects, upon their general appearance, corrected by measuring and juxta position; their first principles, tho' certain and infallible, are too coarse to afford any such subtile inferences as they commonly draw from them. The first principles are founded on the imagination and senses: The Page 309 conclusion, therefore, can never go beyond, much less contradict these faculties.