The Correspondence: Sir Arthur William Rücker to James Smith sub-series consists of:

Drawings and notes on the geology of parts of Scotland (including Edinburgh, Arran, Mull and Islay) of parts of England and also of Pomeroy, Ireland. References are made to Plymouth limestone, Skye granite, toadstones in Derbyshire and papers on raised beaches at Loch Carron.

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Notes for 4 lectures on the 'Volcanic History of Britain', given to the Royal Institution in 1886. Sir Archibald Geikie looked at the emergence of types of geological formations against a geological timeframe and how they have been affected by various processes, especially the action of volcanoes and materials produced by them, within the natural world. He used examples from numerous locations from different parts of the British Isles.

Notes entitled 'Our Older Sea Margins', looking at both 'Terraces of Deposit' and 'Terraces of Erosion' with reference to various locations in Scotland (including Mull, Jura and Loch Carron).

Notes on proposed drawings of Raised Beaches at various locations in Scotland, such as Mull and Loch Torridon.