Annual report . Commissioner of Education. Education Department Bulletin Published fortnightly by the University of the State of New York Entered as second-class matter June 24, iqo8, at the Post Office at Albany, N. Y., under the act of July 16, 1894 No. 492 ALBANY, N. Y. April i, 1911 New York State Museum John M. Clarke, Director Museum Bulletin 148 GEOLOGY OF THE POUGHKEEPSIE QUADRANGLE BY CLARENCE E. GORDON INTRODUCTION The preparation of this paper was begun at the suggestion ofProfessor J. F. Kemp. The field work was carried on at intervalsduring the summers of 1906-7-8-9. During the in
Annual report . Commissioner of Education. Education Department Bulletin Published fortnightly by the University of the State of New York Entered as second-class matter June 24, iqo8, at the Post Office at Albany, N. Y., under the act of July 16, 1894 No. 492 ALBANY, N. Y. April i, 1911 New York State Museum John M. Clarke, Director Museum Bulletin 148 GEOLOGY OF THE POUGHKEEPSIE QUADRANGLE BY CLARENCE E. GORDON INTRODUCTION The preparation of this paper was begun at the suggestion ofProfessor J. F. Kemp. The field work was carried on at intervalsduring the summers of 1906-7-8-9. During the intervening win-ters the extensive literature dealing with the geology of easternNew York State, western New England and the areas of similarrocks at the south was read with care. A preliminary map of the quadrangle was prepared by a sum-mer school party of Columbia University at work for a week underthe direction of Professor Kemp, Professor A. W. Grabau and DrC. P. Berkey. This was of great assistance in the field. The writer owes much to
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