Excerpt from Geology of Oxford and the Valley of the Thames

The history of that part of the earth's surface now occupied by the Valley of the Thames, as treated in these pages, embraces the whole period of geological time from the oldest rocks of Malvern to the latest prehistoric alluvium. The mind perceives and contemplates a long succession of lands and seas much different from those we now behold, the beginning and ending of many systems of associated life and varying physical agencies, all of which have had a traceable influence on the present aspect of this midland region of England.

After marking the main features of physical geography, and describing with the aid of maps and sections the systems of rocks in the order of time, the organic remains of each great group of strata are catalogued as fully as my own knowledge, combined with the valuable aids which are in each case thankfully acknowledged, has enabled me to accomplish the difficult task.

These catalogues are illustrated by numerous engravings.

The great series of reptilian bones, from the oolites, for which the Oxford Museum has long been celebrated, has been examined throughout, and the more remarkable genera have been made the subject of special description and many drawings to scale.

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