# Mathematics

## Found in 212 Collections and/or Records:

### 11 pages of notes on integrals, November 1935

11 pages of notes on integrals. These were sent with a covering note November 1935 by G. Cook, and originally tucked into notebook Coll-37/B.27.

**Dates:**November 1935

### A Prognostication concerning the Frost by Monsieur Cassini the French King's Astrologer, 1697

A scurrilous pamphlet probably directed, according to Gregory's marginalia, at Flamsteed, by one "Charles Bernard Chirurgein".

**Dates:**1697

### A Theoreme Concerning Dice, s.d.

A jotting on game theory.

**Dates:**s.d.

### A treatise of chance written by Dr Arbuthnot anno 1694, 1694

An English piece on probability, probably in John Arbuthnot's hand, with an earlier one-page transcription of a 1690 Acta Eruditorum piece in Gregory's hand.

**Dates:**1694

### Ad Cartesis Specia ... sectionibus Coni, 1680

Notes on Cartesian cone sections, written out during Gregory's stay in Rotterdam.

The item going before, also labelled 134, may actually be 133 (or part of it), which was supposed to have been a treatment by James Gregory on hyperbolae, nautical spirals, and other things. It treats of a hyperbola, at least. Its hand is not David's, but neither is it the hand of item C 136, in James' familiar hand.

**Dates:**1680

### Ad Jo: De Witt Elem: Curvarum, 1680

A demonstratio on one of de Witt's notes on Schooten's 1659 Latin edition of Descartes' Geometria. Unrelated jottings on reverse are in a hand other than Gregory's.

**Dates:**1680

### Ad Pag. 23. Geom: Cartes: Notula, 1680

A difficulty in Descartes, probably written up in Rotterdam.

**Dates:**1680

### Ad pag: 221. Newtoni Nota, May 1694

Gregory's attempt to work out corollary 2 to Newton's proposition 91, from book 1 of the Principia, which compared the ratio of the attraction of a sphere to that of a spheroid, using the integration of the square root of a trinomial.

**Dates:**May 1694

### Ad Philosophiam Neutoni Nota, 15 September 1693

For Gregory's Nota to Newton's Principia. One of several attempts (see C46, C60, and C63) to understand Newton's corollary 2 to proposition 91, book 1, which discovered the ratio of the attraction of a shpere to that of a spheroid, and involved the integration of the square root of a trinomial.

**Dates:**15 September 1693

### Adnotata et contenta quaedam in Actis Lipsicis, 1692

A record of interesting articles in the Acta between about 1681 and 1692.

**Dates:**1692