Plcotystropha dentata From 250 to top of hills lack of Cln. Ref. altuni strata. Striae more uniform in size + finer, Shell has a shining lustre as in L. seriea. Its range seems to be about as great as that of alternata. With This range must be may, ventral valve Coxrightis altunistrata. Hall. Striae of me- gual size, a large + small one. from alternating in regularity, Dorsal valve with nearly equal striae. In. Mayville Madison, articulura radii more numerous than in presidens. entire shell less robust in habit. radii rounder. radii distinctly annulated + concentric lines. presidens: Angular costae lifted bepid. Rocks. -- June 26. 1. West of bridge 51, west of Willina. Rock resembles Garrard SS. at line of White, where it is common. 2. (No7) True Garrard SS. 4 mi. W. of Richmond Ky. Weathered. 3. Loc.87. Four miles W. of Richmond. True Garrard, but fresh. 4. Clint m. 4 ft bel or top.. at bridge E end of Bardstown, Ky. 5. Bstland bed, 19½ft bel or top of Clint m. bridge east end of Bardstown Nelson Cr. Ry. 6. Massive Madison bed bel an thin bedded layers. 1 mi. West of Bndtwn. at distillery on east side of creek. 7. 1ft above line of Bastland bed, 4 mi E of Bardstown, 1½ m Springfield pike. = Madis Richmond express. 8. South end of Mt Washington. Madison. Near one of Upper thirds. 9. South of Mt Washington. The great clay rich section of the lower Richmond.