Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Two lectures given by the medical missionary and explorer David Livingstone after his return to England from his travels in Africa (1841-1856) form the core of this book, which was originally published in 1858, the year when Livingstone set off on the British Zambezi expedition. The book also contains a biography, a letter from Adam Sedgwick (then Professor of Geology at Cambridge), and a thorough appendix covering the scientific results of the journey, describing the geography, mineralogy, diseases, and the language and cultural aspects of the peoples Livingstone encountered. Finally, Livingstone reports on the needs and prospects for further missionary work in Africa. Although Livingstone himself felt his calling was now to pursue purely scientific exploration, he hoped that the lectures and their subsequent publication would encourage other missionaries to continue his work of evangelisation.

Adam Sedgwick (1785 1873) was Professor of Geology at Cambridge from 1818, and in 1819 helped to found the Cambridge Philosophical Society. The 'Discourse' at the heart of this book first appeared in 1833. In it he urged students to develop their characters in this 'place of sound learning and Christian education'. He describes the subjects studied in the university - the 'laws of nature', ancient literature and language, and ethics and metaphysics - and their purpose in the service of God. By the time this fifth edition was published in 1850, however, the book had (as Charles Darwin put it in a letter to the author) 'wonderfully grown', with a Preface of 422 pages and an appendix, ranging very widely over the scientific and philosophical debates of the day, as well as ethics and religion. It provides a fascinating overview of a period of scientific revolution for historians of science and education.

First published in 1853, this is a comprehensive guide to the British Lake District. It features contributions from William Wordsworth and the geologist Adam Sedgwick, as well as a number of shorter sections by local experts on subjects such as botany and toponymy. The first part comprises detailed descriptions of the major towns and villages of the area, providing recommended routes and excursions for tourists. This is followed by Wordsworth's description of the scenery of the Lake District, offering fascinating observations on the natural formation of the landscape and the influence of human settlement. The latter part consists of a series of five letters on the geological structure of the area, written by Sedgwick between 1842 and 1853. Illustrated with detailed maps of the area, this is a key text for those interested in the history of tourism in the Lake District and its development in the Victorian period.

John William Salter (1820 1869) was an English naturalist and geologist, best known for his work as palaeontologist to the Geological Survey of Great Britain. This is a complete catalogue of the Cambrian and Silurian fossils in the Geological Museum at the University of Cambridge. Preceded by a detailed introductory section on the Pal ozoic system, the catalogue is arranged by geological strata, covering the various groups of Cambrian and Silurian fossils. The entries include detailed illustrations, along with references to the location of each fossil in the collection, its name and details of its place of origin. Revised by staff of the University and published posthumously in 1873, the catalogue also contains a substantial preface by Adam Sedgwick, famous for his role in the development of modern geology, which provides fascinating insights into the geological advances of the Victorian era.