Showing Records: 1 - 4 of 4
Libri quedam mathematici Amstel: 1693, 1693
Item
Identifier: Coll-33/Quarto A [27]
Scope and Contents
A scrawled list of partial book titles in David Gregory's hand and at least one other. On reverse is a line of text in Dutch, and possibly Gregory's signature. The smaller sheet is unlabelled, but appears to go with the larger one; its titles concern mostly gravity.
Dates:
1693
Observ: Eclipsos Lunaris Oxon 19 Octr 1697 et [Mercury] in [the Sun] 24 Oct 1697, October 1697, with 2 apparently attached documents from 17041693
Item
Identifier: Coll-33/Quarto A [28]
Scope and Contents
Two straightforward records of planetary eclipses, but meant, on palaeographic evidence, to be kept with a draft and a fair copy of a subsequent Philosophical Transactions of the Royal Society article [Vol. XXIV, No. 293, for September-October 1704, p1704] about the Cassini curve, a model of how a periodic comet probably orbits. Folding and fading of these documents suggest that they were inserted not long after David Gregory generated his index of Quarto A (which he drew up around 1700)....
Dates:
October 1697, with 2 apparently attached documents from 17041693
Torricellii Prop: 8 de Motu Projectorum, 1684-1688
Item
Identifier: Coll-33/Quarto A [46]
Scope and Contents
A study probably relating to part 4 of Gregory's mechanics lectures in Edinburgh. It discusses the theories of Evangelista Torricelli, famous for his " De motu gravium naturaliter descendentium et projectorum, (1644).
Dates:
1684-1688
Tractata cum Hugenio - Hage Com. Maio 1693 (from index), 16 May 1693-18 May 1693
Item
Identifier: Coll-33/Quarto A [8]
Scope and Contents
Conversation notes pertaining to a meeting with Christiaan Huygens in the Netherlands. Entry for 16 May 1693, following a jotted chapter citation (see note) and a squib about the glass used in microscopes, is an agenda for the discussion topics, which are to include foliate curves, Huygens' dioptrics (laws of refraction), compound 'astroscopes', gravitational theory of (his Oxford colleague from Switzerland,) Fatio de Duillier, a celestial-motion machine, a new pendulum for Huygens'...
Dates:
16 May 1693-18 May 1693