ELEMENTS OF OPTICAL MINERALOGY AN INTRODUCTION TO MICROSCOPIC PETROGRAPHY BY ALEXANDER N. WINCHELL, Doct. Univ. Paris Professor of Mineralogy and Petrology, University of Wisconsin SECOND EDITION, SECOND PRINTING PART III. DETERMINATIVE TABLES WITH A COLORED CHART AND Two DIAGRAMS NEW YORK JOHN WILEY SONS, INC. LONDON CHAPMAN HALL, LIMITED 939 COPYRIGHT, 1929, 1939 BY ALEXANDER N. WINCHELL All Rights Reserved This book or any part thereof must not...