Scope and Contents

Letter to Sir Charles Lyell from William Blackadder on geological matters. He mentions some post diluvium conglomerate found at Glamis gate, discusses the route of the river Nith from its source in the coalfields of Ayrshire to the Solway Firth and remarks that he considers the sweep of diluvium hillocks near Melgund Castle to be the most extraordinary in the country, 15 October 1827.

Lyell's Own Index This black leather notebook contains Lyell's notes on current scholarship from other well-known natural history colleagues, including Darwin, Deshayes, Blackadder, Owen, and more. Notes are made in pencil and ink with some sketches. The index is pasted to the back cover, and the front cover is blank. This notebook has a reference in the index on page 56, to 'Darwin St Helena Shells' which links to a specimen held by the Cockburn Geological Museum reference EUCM.0180.2013....