Report to Director of Geological Survey, recommending a Naturalist to be attached to the Survey Staff

Drawing of an Ichthysaurus

Report on Lecture by Huxley to Working Men on "Objects of Interest in the Collection of Fossils", Builder, page 35
Printed

Slip proofs of Huxley's paper 'On the Milk Dentition of Palaeotherium Magnum' [Geological Magazine vii (1870), 153; The Scientific Memoirs of Thomas Henry Huxley iii, 595]. Note by the editor: "This is probably full of errors - the copy is awful!"

Notes and materials for Lectures on 'The Pedigree of the Horse' [Lectures at Royal Institution, 1870, and London Institute, 1873 and 1876]. With many drawings

Report of Lecture by Huxley on Pedigree of the Horse at London Institution, from The Times
Printed

Report of Address by O C Marsh at American Association for Advancement of Science on Ancient Life in America, New York Daily Tribune
Printed

Reports of Huxley's Lectures on Evolution in USA, New York Tribune
Printed

Notes and Materials for Huxley's address to British Association at York on the 'Rise and Progress of Palaeontology' [The Collected Essays of Thomas Henry Huxley iv, 24; The Scientific Memoirs of Thomas Henry Huxley iv, 508]

Report on the British Association Address, Nature, 452-454
Printed

Notes on levels of the Nile

'Unwritten History', a lecture by Huxley to the Eton Volunteer Corps. Slip proofs of the lecture published in Macmillan's Magazine xlviii. It was also published in Eclectic Magazine ci, 113 (1883) [This lecture deals with the Geology and Physical Geography of the Nile Valley]
Printed

Notes and Extracts relating to Fossil Insects

'The Future of Geology'. Presidential address by the Rev G Deane, Birmingham Philosophical Society, Nature, xliii, 303-307, 29 January 1891
Printed

Photograph of the type specimen of Hylonomus lyell, a Microsaurian from the coal deposits of Nova Scotia, collected by Professor Dawson, and depositied in Geological Society Museum [Quarterly Journal of the Geological Society of London xvi, 274]