J. Pellii Idea of[542] Mathematicks printed in English and in Latin at the same time, 16mo.

Inaugural oration, p. 33[543].

{ Ψαμμίτης, a quarter of a sheet of paper one
Both MSS. { side; and also
{ Euclid's[544] Xth Element(orum liber) (vide
infra) which is in Cheshire at my lord Brereton's.

He hath written on the tenth booke of Euclid, which is in Cheshire at the lord Brereton's, and he hath also done[545] the greatest part of Diophantus[546], which is there[547]—both unprinted[548].

Also he hath donne[549] the second booke of Euclid in one side of a large sheet of paper most clearly and ingeniously.

He hath donne most succinctly and clearly Archimedis Ψαμμίτης in one side of an 8vo paper.

Also he hath demonstrated the proportion of the diameter to the circumference, and shewes what was the reason why Archimedes did use these two numbers—he did it at the instance of Sir Charles Scarborough—one sheet.

☞ In the booke called Branker's Algebra that which is purely Dr. Pell's beginnes at p. [79] and so continues to FINIS—this I had from his owne mouth.—Desire Mr. A. Wood to take some paines to enquire for Mr. Turner, M.A. at Oxon (I thinke of Exon. Coll.), who tooke some paines about Branker's Algebra.

Dr. Pell haz often sayd to me that when he solves a question he straines every nerve[550] about him, and that now in his old age it brings him to a loosenesse.

[551]Dr. J. Pell was the first inventor of that excellent way or method of the marginall working in algebra.