[04 P". REPORT OF PROGRESS. E. W. CLAYPOLE. 



Page. 



Cook A Petermann's, Hamilton fossil ore, 100 



Cook, (P.,) old mines, Miller t., 205,272 



Copper ore, 322 



Corniferous character of Clark's Mills limestone topmost beds, VI b, . . . 59 



11 limestone formation of New York, possibly coeval with Oriskany in 



Pa . . 63,64 



" " improperly recognized in the greenish limestone beds under 



VIII 6 1, . . . 191 



" " not to be identified with VIII b 2, 3 ; no Corn. Lim. fossils to be 



found in them, 260,261 



Cove creek, 26 



Cove mountain, Penn t., described, 9,10,285 



Cove in Penn t., well cultivated, 293 



Cove of Hunter's run, or Buffalo mountain, 148 



Cranbyhill, VIII c 2, 15 



Crawley anticlinal, 347 



Crawley hill, VIII c 2, 81 



" " Little Germany fault, 90 



" " VIII c 2 fossil ore outcrop ; unproved, 100; 205 



" " east end in Centre t., 201 



44 " unites with N. Furnace hill, at Beggar's run, Spring t., 343,344,345 



Crest of Blue mountain, Rye t., 311 



Crumpling of the crust of the earth, 41 



Cumberland Valley trap dyke, 294 



Daohterman's form, 100 



Danville fossil ore beds, at Millerstown v., a 3, 323 



" " in shales under ore SS., no trace of them in Tyrone t., . . . .371 



Dark Hollow, Kingsmill SS., Wheatland t., 390,394 



Dawson, (Dr. J. W.,) of Montreal, 65,341' 



Delville, in Wheat held t.; mill, 4; 3h9,394 



Del ville green sandstone, assumed base of IX 75,77,394 



u u why green, 77,78 



" " 20' thick at Judge Jun kins', Carroll t., 166 



'* " has coaly layer ; top of Kingsmill section, Penn t., . . . . 289; 395 



" road through gap between Dick's hill and Round Top, 390 



Deposits in the sea, 37 



Dick's hill, VIII c2; faulted, 10,(37: 86 



« fossil ore of VIII, 100 



44 In Wheatfleld t. called Rook hill in Carroll t, 162 



" " highest ridge in Centre t.; only one gap, 202,203 



" in Miller t., 271 



" 44 east end <'ut oflfby fault, 38] 



Dick's Hill Bridge, a connecting ridge from Dick's hill to Round Top, . 390 



Dip gentle in Sandy hill, 67 



'• i, m Buffalo and Dick's hills, 87 



• in m Dick's hill, 86 



" i.". at Little Germany fault 90 



N.. in \, Berry nun.. Buffalo t, 158 



•• steep in Elock hill, N. side; 80° 8. side, 162 



41 vertical nearly in Centre t., sig-ngs of VI a 180 



^erthrown sometimes in Centre t., VI a, 181 





