INDEX. F. 401 



Page. 



Blaine in Jackson t., 5,351 



*• high knoll, synclinal, of VI, 234 



Block ore of V a, described, 48,160 



Bloomsburg red shale of I. C. White's report G 7 , . . 



" " V 6, bottom member of Onondaga formation, 51 



" " " fossililerous only in a few places, 51 



" '• no Clinton form as yet seen in it, 51 



" " " 830' thick in Madison t., 255 



Bloomfield (see New Bloomfield) in Center L, 4 



•• valley anticlinal, 29 



'■ branch of Little Juniata river, 177 



Bloomfield sandstone, in V b, Onondaga, 54,233 



" makes a low ridge along the valley, 179 



" " 42' thick in Landisburg section,. Tyrone t., 372 



Blue limestone beds of VI a best for lime, 259 



" well exposed in Madison t., 259 



Blue mountain described, 1,8 



" " anticlinal spur splits Henry valley near west end of Jackson t., 231 

 M " crest in Rve t. a double line of ragged, broken, notched outcrops, 



500' apart, 310 



11 " flat outcrops of vertical V a 1 beds, 311 



Bluffs— See Cliffs. 



Bluffs of Chemung, VIII /, at Montebello furnace, 72 



11 " " at Newport, 72 



Bluff of VII above Adam's Glen, 8. EL, Spring t., 338 



Borroll, (Win.,) 165,167 



Bossardville limestone of I. C. White, VI, described, 58 



Bower mountain, .... 8 



" " crest at road in Jackson t. 950' above Shaeffer's valle^v ; 1350' 



above Landisburg; 2000 i; A. T., . 8,229,231,355 



" "in Madison t., all wooded, but one farm on top, 249 



Bower's (Mr.) three warm springs, Spring t., 348 



" " temperature 65°, 61°, 60° F., .• 348 



Bowlders brought down by river ice, . 167 



" of white chert in Buffalo valley, 20' to 30' above present bed of Little 



Buffalo creek, .... 200 



" of trap piled up for a width of 500', Rye t., 316 



Boyd's ridge skirts N. side of Bower's mtn., Toboyne t., 351 



Bradford co. fossil found in Perry co., 328 



Breccia limestone in V 6, variegated shales, Loysville, Tyrone t., . . 373,374 

 Brick-clay and sand in Center t. described, ........ .... 208 



'• in Juniata t, 237 



Bridgeport in Spring t., . . .... 5 



Bridgeport sandstone in lower part of red shales, V b, described as a local 



deposit, . . 57 



" •' at Bistline's mill, 5' thick, underneath 200 , and overlying 500' of 



red shale, V 6, . . 68 



" " makes Quaker hill in Spring t., . 338 



" " crops out frequently in Tyrone t.. especially on sides and top of 



ridge in Kennedy and Green valleys, 37:'. 



" " 12' thick, makes rugged terraces, 



26 ]-\ 



