Excerpt from The Oil-Shales of the Lothians: Part I. The Geology of the Oil-Shale Fields; Part II. Methods of Working the Oil-Shales; Part III. The Chemistry of the Oil-Shales
The following Memoir on the Oil-Shale industry of Scotland is divided into three parts, and treats of the subject both in its geological and technological aspects. Part I. treats of the Geology of the Oil-Shale fields of the Lothians, and is the joint work of Mr. H. M. Cadell and Mr. J. S. Grant Wilson. After the opening up of the oil-shale industry it became necessary to re-survey the portions of Midlothian and Linlithgowshire in which the shales occur. This work was done by Mr. Cadell, who, since its completion in 1887, has possessed an unrivalled knowledge of the geological structure of the various shale-fields. It is therefore a source of gratification that, notwithstanding his retirement from the Geological Survey, we have been able to secure his services in the preparation of this volume. The recent revision of the area in connection with the re-survey of the Scottish coal-fields has fallen to the lot of Mr. J. S. Grant Wilson, who thus naturally becomes associated with his former colleague. Part II., which deals with the methods of working the oil-shales, and is, therefore, of a technological character, has been executed by Mr. W. Caldwell, whose training as a mining engineer and whose experience as mining manager in the Pumpherston field have given him special qualifications for the task.
Part III. is concerned with the treatment of the material after its extraction from the mine, with the products obtained from it, and with the statistics of the industry. This is the work of Mr. D. R. Steuart, chemist to the Broxburn Oil Company, who is recognised as a leading authority on this branch of enquiry.
Special thanks are due to Dr. Leonard Dobbin, chief assistant to Professor Crum Brown, F.R.S., The University, Edinburgh, for valuable suggestions in connection with the part dealing with the chemistry of the oil-shales, and for kind assistance in revising the proof-sheets. The Memoir has been edited by Dr. Horne.
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