Showing Records: 91 - 100 of 318
Dedication of the Presb: Eloquenio to the E of Crawford, c1692
Transcription of a book dedication, possibly referring to "Scotch Presbyterian eloquence display'd, or, The folly of their teaching discovered from the books, sermons and prayers : and some remarks on Mr. Rule's late Vindication of the Kirk: interspers'd with some genuine adventures in love", which appeared in 1692. It is in Gregory's hand, but signed "J.C."
Demonstratio 10me Regulae Huddenii, May 1680
A problem from Descartes, worked through by Hudde, whose notes were included in the 1659 edition of the Geometria. This was probably written out in Rotterdam and sent to a friend as a letter.
Juxtaposed to this item, and possibly out of sequence, is the unlabelled and undated "Francisci Renati Slusii Methodus Tangentium', extracted in a hand other than Gregory's, from the January 1673 Transactions.
Demonstratio probl: VII. Lect: Geom D: Barrow pag: 125, c1696
A 29-page tranche of working papers, in which for the most part Gregory appeals to Isaac Barrow as he tries to reconcile his definite with Craige's indefinite integration.
Demonstratio regularum Huddonii..., 1708
Several demonstrations of axioms derived by Hudde, in letter form, addressed to one M. Sauveur.
Also a record of a conversation with M. Fatio, fellow mathematician and confirmed religious fanatic.
Two unrelated pages follow, before item 66: a pair of printed leaves in optics.
Demonstratio synthetica minimi crepusculi, c1703
A study of the geometrical rationale for determining the moment of twilight, undated but for a reference to the Astronomiae.
Demonstration que la Cycloide est la Courve de la ... descent, 1699
Gregory's copy of de l'Hôpital's analysis of the curve of most rapid descent into a cycloid.
Denti Humana monstrose dimensiones, 1691
A jotting, with crude drawing, of an archaeological curiousity in Hixham in Northumberland.
Descriptio Christalli Heddintomani, c17 May 1697
Descriptio Machinae ad Planetarum Motuu exhibendum ... in obsero: Paris, 1680
Diagrams and explanations of things Gregory saw in Paris in December of 1680: a pendulum of the sort used in Huygens' famous horologium, an enormous quadrant, and the moving planetary model of one Dr Romer. This was probably the Danish astromechanic Ole Roemer (1644-1710).
Desiderata in optics and the Principia, 1694
Two sheets, each containing notes on Newton and draft passages of Gregory's own work on the optics of spheres. How they are related is not clear; they may not be.