Scope and Contents

A tranche of workpapers in which Gregory continues to labour on adapting Newton's method of quadrature. He continues to have trouble adapting the basic series, an indefinite integral, to the definite integral defined between O and x.

One paper among these was probably intended for the Astronomiae, showing a body moving in an ellipse.

Scope and Contents

The Correspondence to Sir Archibald Geikie: A Bachellery to Thomas Forster Brown sub-series consists of:

Scope and Contents

Gregory, probably with Pitcairne at his side, sent these curves to Craige in Cambridge, challenging him to find their quadrature. Thus the writing that is not in Gregory's hand may be Craige's.

Scope and Contents

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.

Scope and Contents Letter to Sir Archibald Geikie from George Barrow concerning Geikie's wish to investigate the grounds for Barrow's assertion that the Loch Tay limestone and the Blair Atholl series are not on the same horizontal plane. He recommends that Geikie start his investigation at the Spital of Glenshee and recommends some accommodation there. Barrow lists the ascending stratigraphy which Geikie should observe, with additional notes on some of the apparant features. He offers to take Geikie over the...

Scope and Contents

Letter to Sir Archibald Geikie from George Barrow asking if Geikie could send Jethro Justinian Teall, to the Braemar area for between a week and 10 days, in a fortnight's time, as he believes that this will help him to understand the complexities of the metamorphic and dynamometamorpic rocks in the area. He wishes Geikie well for a forthcoming trip with Fridtjof Nansen.

Scope and Contents

Letter to Sir Archibald Geikie from George Barrow accepting work in north Staffordshire. He welcomes the opportunity of at least 2 months break from the difficult geological work which the old red sandstone in the highlands of Scotland present, and the change to a pleasanter climate.

Scope and Contents

Gregory finds a mistake in Craige's handling of a theorem by Barrow.