LIST OF ILLUSTRATIONS. I. Map of Paleozoic Geology PLATES. Page. faces II. South wall of the Woolmith quarry, showing massive building blocks of the silicious dolomite .....p. 80 III. View of the Cummins quarry, locally known as the "Little Sink.' .........p. 88 96 p. 100 .p. 105 .p. 112 113 ......p. 116 118 VIII. View of the River Raisin at Monroe, showing the typical beds of dolomite ......p. p. 120 IX. Rock opening through which the water of the "Big Sink" escapes. View looking into the bottom of a small ravine X. Bed of Ottawa Lake sink, from the head looking southward. Oct. 15th, 1898 ...... ..p. XI. Sand ridge of lower beach west of Erie, showing typical growth of oak and evergreen. Dec. 4, 1897.. XII. View of Stony Point looking northeastward toward Point aux Peaux. Observe the ice polished and battered condition of the rock in the foreground .......p. XIII. Roadway through one of the Monroe nurseries, showing a typical wave washed flat .......p. XIV. Outcrops of the "Monroe beds" at Point aux Peaux, Lake Erie......p. XV. Map, contours showing depth of drift, oil and gas and artesian belts, etc., also indicated ..p. XVI. Site of the "Shawnee Spring" near Monroe. The extensive mound built up by the spring is but faintly shown in the field beyond the picket fence XVII. Waterlime Fossils, reprinted from Annals N. Y. Acad. Sciences, Vol. V, Pl. V, Ohio Geol. Survey, Second Ann. Report and Vol. VII, Plate I.. 1. Mammoth boulder transported by the ice sheet and dropped east of the site of Ida. Four feet above ground; twenty feet long 21 115 115 2. The "Big Sink" doing service as a lake, March 26, 1898. 3. The "Big Sink" under cultivation, Oct. 15, 1898.. 4. View of the government canal, near Monroe, opening into Lake Erie.. The view gives one an idea of the inundated "drowned" appearance near their mouths of all streams which empty into Lake Erie.. 5. Lotus bed in the marsh near Monroe. The marsh is due to recent submergence by the Lake. Photographed, August, 1890 View of extensive Cranberry marsh when flooded in the spring. Sec. 24, 157 B LIST OF ILLUSTRATIONS. PLATES. I. Map of Paleozoic Geology II. South wall of the Woolmith quarry, showing massive building blocks of the silicious dolomite Page. faces .p. 80 V. VI. III. View of the Cummins quarry, locally known as the "Little Sink." .......p. ......p. .p. .p. VIII. View of the River Raisin at Monroe, showing the typical beds of dolomite ........p. IX. Rock opening through which the water of the "Big Sink" escapes. View looking into the bottom of a small ravine .p. X. Bed of Ottawa Lake sink, from the head looking southward. Oct. 15th, 1898 .......p. XI. Sand ridge of lower beach west of Erie, showing typical growth of oak and evergreen. Dec. 4, 1897.. .......p. XII. View of Stony Point looking northeastward toward Point aux Peaux. Observe the ice polished and battered condition of the rock in the foreground ......p. XIII. Roadway through one of the Monroe nurseries, showing a typical wave washed flat .p. 128 140 144 XIV. Outcrops of the "Monroe beds" at Point aux Peaux, Lake Erie......p. XV. Map, contours showing depth of drift, oil and gas and artesian belts, etc., also indicated ..........p. 192 XVI. Site of the "Shawnee Spring" near Monroe. The extensive mound built up by the spring is but faintly shown in the field beyond the picket fence ......p. XVII. Waterlime Fossils, reprinted from Annals N. Y. Acad. Sciences, Vol. V, Pl. V, Ohio Geol. Survey, Second Ann. Report and Vol. VII, Plate I.. FIGURES. 198 242 1. Mammoth boulder transported by the ice sheet and dropped east of the site of Ida. Four feet above ground; twenty feet long 21 115 115 2. The "Big Sink" doing service as a lake, March 26, 1898. 3. The "Big Sink" under cultivation, Oct. 15, 1898.. 4. View of the government canal, near Monroe, opening into Lake Erie.. The view gives one an idea of the inundated "drowned" appearance near their mouths of all streams which empty into Lake Erie...... 146 5. Lotus bed in the marsh near Monroe. The marsh is due to recent submergence by the Lake. Photographed, August, 1890 6. View of extensive Cranberry marsh when flooded in the spring. Sec. 24, Summerfield township 148 157 B |