Draft letter, from [John Collins] to [Isaac] Newton Partial draft letter; heavily corrected and annotated in John Collins' hand. Discusses the possibility to print Newton's annotated edition of [Gerard] Kinckhuysen's Algebra, Collins encouraging Newton to write an introduction for it and add his own findings on algebra. Mentions that [James] Gregory who is also working on calculus is waiting for Newton to publish to print anything. Mentions Scottish mathematician [George] Sinclair, describing him as "a pitiful ignorant fellow who hath lately written horrid nonsence on the Hydrostaticks" and his criticism of [William] Sanders [note: in fact Gregory and Sanders had recently published a satire of Sinclair "The Great and New Art of Weighing vanity", 1672, Sanders' answer was never printed], Collins writing "we resolve to make excellent sport with him". Asks Newton's opinion of Borrellius' De Motionibus. Endorsed in a different hand 'No. 25: p.104' on first page and with recipient on last page to denote that some passages within the letter are included in 'Commercium Epistolicum' 1722 edition, page 104, paragraph XXV. Numbered 10; 15 at the end. 30 July 1672