–habits of the seventeen-year locust, 224;
date of the annual song of the kitty didet, 227;
register of the flowering of chesnut trees for eleven years, 228.
—, —, oolite in, xix, 398.
—, —, iron beds of, xvii, 203; xlvi, 25, 26.
—, —, Palisades in, ii, 181;
–elevations of points in, 184;
Tappan creek, 185;
excavation for silver, 185.
—, —, mineralogy and geology of, C. U. Shepard, with a map by Young and Heron, xxi, 321.