This enormous and varied tranche of material begins as preliminary work, 'Ordo Faciendorum' for the Exercitatio Geometrica, mentioning in particular the work of Canon Sluse, and broadens into a running record of Gregory's thoughts on quadrature, mostly, beginning with a page of 'Desiderata'.

Curiosities intervene: a writeup, possibly in the hand of one Robert Morrison, of everything known about the plant substance Nicotine; two more broadsheet cuttings of the mathematical showdown between Pitcairne and Young (see C187); a 1700 note on scientific Greek, apparently by the Dean of Christchurch (then Henry Aldrich--see item A139); an epigram on or by Gresham; a printed tractate by John Wallis on the proper duties of a Savilian Professor.

C196 contains, out of sequence, C197, bearing our conservator's pencilled number 493, which document has its own entry.