Notebook contains entries starting from both ends - one end begins with a comprehensive list 'No.1 Mem for Tours' and lists all the kit Lyell wanted to pack and take with him. Then notes on different measures - miles and temperatures - metals, chemicals, gravity, crystals. Lists of questions and tasks whilst in London - including British Museum, Sedgewick, and others. Turning the notebook round, the contents are a set of references and questions, with index notes. Geology Lecture notes of April 29th 1825, plus notes on minerals. 'Scrap Book - Science' then more notes including Scrope on Volcanoes.