Geologic work in New England and northern Appalachian region Division of geography and forestry ILLUSTRATIONS. Page. PLATE I. Map of United States, showing areas covered by topographic surveys. 30 32 32 IV. Map of Indiana, Illinois, Iowa, and Missouri, showing progress of 34 V. Map of Kentucky and Tennessee, showing progress of topographic VI. Map of Minnesota, showing progress of topographio surveying and VII. Map of Nebraska and Kansas, showing progress of topographic sur veying and primary control.... VIII. Map of Maine, New Hampshire, Vermont, Massachusetts, Rhode IX. Map of Pennsylvania, New Jersey, Delaware, Maryland, Virginia, X. Map of North Carolina, South Carolina, and Georgia, showing prog- 40 42 XII. Map of North Dakota and South Dakota, showing progress of topo graphic surveying and primary control 46 XIII. Map of Arizona and New Mexico, showing progress of topographic surveying and primary control 46 XIV. Map of northern California, showing progress of topographic surveying and primary control.. 46 XV. Map of southern California, showing progress of topographic surveying and primary control......... 46 XVII. Map of Idaho, showing progress of topographic surveying and primary control. XVI. Map of Colorado, showing progress of topographic surveying and primary control.. 48 48 XVIII. Map of Indian Territory, Oklahoma, and northern Texas, showing 48 48 XX. Map of southern Texas, showing progress of topographie surveying and primary control.. 48 5 Page. PLATE XXI. Map of Nevada and Utah, showing progress of topographic surveying and primary control. 50 XXII. Map of Washington and Oregon, showing progress of topo- 50 XXIII. Map of Wyoming, showing progress of topographic surveying and primary control XXIV. Map of United States, showing location of principal river stations maintained during 1903-4.. 50 66 |