PREFATORY LETTER. JEFFERSON CITY, Dec. 31, 1890. To the President, Governor David R. Francis, and the Members of the Board of Managers of the Bureau of Geology and Mines: GENTLEMEN-I have the honor to submit to you, herewith, my report of the operations of the Geological Survey of the State since the beginning of work in October, 1889, to the present date. As the present work is practically a continuation of operations begun by earlier Surveys, I have introduced this report by an historical sketch describing the origin, the progress and the results reached by these Surveys, so that the foundation upon which the present work stands may be clearly known, and so that the reasons for the existing plans of work may be appreciated. Following this I have undertaken to describe the organization of the present Survey, giving an outline of the general plan of work and the reasons for adopting it. Succeeding this is a statement of the results which have been reached by the Survey during this year's work, after which I have submitted a classified statement of the expenditures to date. The last part of the report is devoted to a consideration of the needs for the future. That the results of this, the first year's work, may meet with your approval, and that they may prove of true benefit to the State, is my earnest hope. Toward this end I have directed my best efforts. In this work, however, I have been cheerfully sustained by other members of the Survey, and recognition for this is due them here. Such success as may have resulted is due, in large part, to their co-operation. Coming to the Survey variously prepared and with variable appreciation of the character of the work ahead, they have, as a body, applied themselves with zeal to the accomplishment of immediate ends; they have endured the exposures and the hardships without complaint, and have displayed ability and talent in the execution of the work. Further, the Survey owes a debt of gratitude to those citizens of the State who have advanced the work, either by extension of hospitality, by furnishing information or by guidance in the field. Such assistance not only hastens the progress of the work, but, when accompanied by a cordial exhibition of interest, adds zest and a sense of recognition which is always inspiring. Finally, Mr. President, I owe to you, with whom I have been in most frequent intercourse, an expression of gratitude for the attention you have given to all affairs of the Survey concerning which I have consulted you, for your valuable advice in relation to matters of administration, and for the confidence you have exhibited in my management. To other members of the Board I am further indebted for much assistance in advancing the work, and for hospitalities extended to myself and others of the Survey corps. Very respectfully submitted, ARTHUR WINSLOW, State geologist. CONTENTS. Operations preceding the First Geological Survey The First Geological Survey of Missouri... The Organization of the First Geological Survey. The Reports of the First Geological Survey..... The Work of the First Geological Survey The Period between the First and Second Surveys The Second Geological Survey of Missouri The Survey under A. D. Hagar.... The Survey under Raphael Pumpelly.... The Survey under Garland C. Broadhead. The Survey under Chas, P. Williams ..... A Summary of the Results of the Earlier Surveys. Page |