i.xdkx. F\ 405 



Page, 



Dip 30° N. N. W., Centre t., Clark's mill, VI b, isi 



" 90°, Centre t., Long's ore bank, VIII b 1, 194 



" 92° S., Centre t., Barnett's mill, . . 206 



" 30° N. N. W. Centre t., on L. Buffalo creek, 206 



" 60° X. 300 yards below Newport bridge, 225 



" 15° Jackson t., gap of Sherman's cr. through Chestnut ridge in the 



rocks of V (i, 232 



" 60° Jackson t., half a mile west of the gap, 232 



" steep N. and S. in Liverpool t., VI, . 242 



" 70° along X. br. of Barger's run for 1| miles, making VIII-IX and 



IX 6000' to 7000' thick, 244 



" 20° to 25° N. N. W. Madison t., Centre quarries, VI a, 259 



" 2° to 5° N. N. W. in limestone quarries of VIII 6, 262 



" 40° west of Centre mills, in same, 262 



" 90° Oliver t., ore bed of VIII b 1, 279 



11 75° N. X. W. between Newport and Clouser's mines, 279 



" flattens to 25° and 30° at Inoculate run, Oliver t., 279 



ii ioo°+ N. N. W. overthrown, in Penn t., X, 285 



» 40° S. 20° E. Penn t., Kingsmill, 287 



" 35° S. 20° E. at Kingsmill, 289 



" 90° nearly all along Blue mountain, Tyrone t., . . . . , 370 



" 45° X. N. W. on McCabe's run at Egolf's mill, 373 



" 40° to 50° in Half Falls mountain, 380 



" 30° to 90° in short distance along crop of VIII c 2 in Wheatfield t,, . 389 

 " 30° SS. E. uniformly along crop of VIII c 3, along Dick's hill, Wheat- 

 field t., 390 



« 25° S. 30° E. in Kingsmill section, Wheatfield t., 392 



" 40° S. 20° E. in VIII-IX shale, Wheatfield t., 392 



" 90° nearly in Kingsmill SS., Wheatfield t., 394 



Distortion of fossils, 41 



Dividing mountain, Toboyne t., 356 



Dochterman, (C.,) mine on VIII c 3, local ore, 390,391 



Dolerite ; see Trap dykes, . 301 



Dolomitic (magnesian) limestone absent from Center t., 180 



Donally's mills in Tuscarora t., . . . 4,15 



Dorran's run Center t., exposes VIII b 5, 196 



Dorian's gap, very picturesque. 199 



Dorran's narrows, VIII 6 fossil ore crop, .195,204 



" SdndofVII. 209 



Doubling hollow in Cumberland county, 229,370 



" " road over Blue mtn., Madison t., 249 



Drumgold's tannery, Sherman's cr., Carroll t., 68,164 



Dry land in palaeozoic times, 63 



Dry saw-mill on the Susquehanna river, two miles N. of Liverpool, . 244,245 



Duncan's island, Wheatfield t., 295,393 



Duncannon, in Penn t., 4 



" hill, of IX, 78 



" Iron Company: furnace, 100; 391 



" coal bed in X, 292 



Dunn's ore banks, Spring t., VIII b 1, 341 



Egle, (Dr.,) of Harrisburg, 395 



