Bio 



38 



& Meall Breac, xlviii. 110 ; format, 

 of, in felsp.-pjTOxene rock, xlix. 103 ; 

 secondary devel. of, in Binnenthal 

 Schists, xlix. 104-113 figs. ; do. at 

 Malvern, xlix. 399. 



Biotite-gneisses of W. Malvern, xliii. 494 

 & pi. xix. ; of Swinyard's Hill, xliii. et 

 seqq. & pi. xx., xlv. 486, 496 & pi. xvi. ; 

 b.-gn. prod. fr. diorite, xlix. 402, 412, 

 416. 



Bir-el-Mashiyah (N.W. Arabia), coral- 

 limest., etc. of, xxxi. 8. 



Biradiolites canaliculatus , xi. 51 fig. 



Birchwood Plantation (Leicester), microsc. 

 struct, of rocks in, xxxiv. 206. 



Bird Reef Series congloui., 1. Proc. 5. 



Birdlip (Gloucester), section to Swindon, 

 xiv. pi. vii. ; B. Hill, Inf. Oolite at, xvi. 

 43. 



.Birds' *footpr. & coprolites, i. 141 ; 

 supp. bones of, fr. Wealden, ii. 96- 

 102 figs., 104-106 fig., iv. 7-8 & pi. i. ; 

 footpr. (?) in Hastings Sands, ii. 267 ; 

 in N. R. S. of Storton (L'pool), ii. 410 ; 

 supp., in Coal Measures of Pennsyl- 

 vania, ii. 418; foss., fr. New Zealand, 

 vi. 333-342 ; footpr. in Connecticut 

 Sandst., vii. pp. lx et seqq. ; bones fr. 

 St. Helena, viii. 198 ; phalangeal bone 

 (Eoc), x. 157 ; footpr. in Wealden, 

 viii. 396 figs., x. 456-464 & pi. xix.; 

 char, of tibiae & condyles, xii. 205 et 

 seqq. ; evid. of aff. w. dinosauria, xxvi. 

 12-31 figs. ; aff. w. ornithoscelida, xxvi. 

 37; see also Aves. 



Birdseye ' gabbro of Guernsey, xl. 411, 

 417. 



Birdseye Limestone in Canada, viii. 200, 

 205; in N. Y. State, xiv. 342, 430; 

 foss. in same, xv. 282 ; in Winnipeg 

 basin, xvii. 439 ; boulders of, in Sas- 

 katchewan plains, xvii. 396. 



Birkenhead (Cheshire), Glacial drifts nr., 

 xxxiii. 734 ; age & orig. of striated rock- 

 surfaces around, xxxv. 448. 



Birkhill (Dumfries), graptolite-beds nr., 

 vii. 48. 



Birkhill Beds at Dobb's Linn, xxxiv. 249, 

 319, 322; at Craigmichan, etc., xxxiv. 

 261 et seqq. ; at Hartfell Soa, xxxiv. 

 292 ; lithol. & paheontol. of, xxxiv. 317 ; 

 equivs. in Bohemia, xxxvi. 603, 604; 

 (Upper), Caerdigan Group correl. w., 

 xxxvii. 166. 



Birkrigg Moor (Lanes), smoothed & grooved 

 rock-surfaces on, xxv. 419. 



Birling (Kent), section to Havering-atte- 

 Bower, xxiii. 398. 



Birling Gap (Sussex), rubble-drift at, 

 xlviii. 266 w. section. 



Birmingham (Warwick), snowdrift de- 

 posits seen at, 1. 474. 



Birnam (Perth), section across Tay Valley 

 at, xvi. 351. 



Birnie (Elgin), section to Causie, xx. 

 431. 



Biscuof, G., ^Format, of Mineral Phos- 



phates, iv. (Part 2) 24-25 ; ^Phosphoric 



Acid in Lava, iv. (Part 2) 47-48. 

 Bischof, G., *Carbonic Acid Exhalations, 



vi. (Part 2) 40-41. 

 , *Chem. & Phys. Geol., 2nd 



ed., xx. (Part 2) 13-15, xxii. (Part 2) 



6-10. 

 , Wollaston Medal awarded to, 



xix. p. xxvii ; obituary of, xxvii. 



p. xxxiii. 

 Bischoff, Mt. (Tasmania), discov. of tin- 

 ore at, xxxi. 109. 

 Bisham (Berks), gravels nr., xlix. 312. 

 ' Bishop's Castle Slates & Traps' (=Llan- 



deilo Flags), iv. 296. 

 Bishop's Norton (Lines), Oxf. Clay at, 



xlv. 549. 

 Biishopford Bridge (Norfolk), section in 



Crag, etc. at, xxvii. 469. 

 Bishopstone ravine (Heme Bay), cliff-see- 



tion E. of; x. 110 & pi. i. 

 Bisidmonea, gen. char, of, xlv. 570. 

 tetragona, var. ovalis, nov., xlv. 571 



& pi. xix. 

 Bismuth, nat. alloy w. gold, xxv. 335. 

 Bison prisons, found at Windy Knoll, xxxi. 



246, xxxiii. 728 ; table of meas. of 



limb-bones, xxxi. 247 ; migrat. at diff. 



season fr. that of reindeer, xxxi. 254; 



found at Robin Hood Cave, xxxii. 249 ; 



at Twickenham, 1. 456, 458. 

 Bissex Hill (Barbados), calcified earths 



fr., xlviii. 176 ; Oceanic Series at. xlviii. 



212. 

 Bitlis (Armenia), section to Ardish, xi. 



343 ; do. to Jezireh-ibn-Omar, xi. 344. ; 



water fr. saline spring, chem. anal, of, 



xiii. 187. 

 Bitumen-deposits on Turko-Persian fron- 

 tier, xi. 269 ; in Mackenzie R.-basin, 



xi. 509, 511 ; *of Seefeld, xiii. (Part 2) 



21 ; see also Asphalt. 

 Bituminous shales in Caithness Flag 



Series, xv. 401, 402 w. chem. anal. : 



mineral at Mountgerald, xix. 522-524 ; 



limest. in Arabia Petrsea, xxv. 23, 24 ; 



coal-beds, format, of, xlix. Proc. 11. 

 Black, J., Footpr. in New Red Sandst., 



Weston, Runcorn, ii. 65-68 & pi. v 



[? wrongly numbered]. 



■ , obituary of, xxiv. p. xxxviii. 



Black Burton coalfield (Yorks), viii. 38. 

 Black Comb (Cumberland), section, ii. Ill ; 



Skiddaw Slates of, xix. 131; drift of, 



xxv. 427. 

 Black Crag (=Lr. Antwerp Crag), viii. 



290 et seqq. w. list of foss. 

 Black Dog (Aberdeen), drift at, xiv. 511. 

 ' Black Earth ' *of Russia, vii. (Part 2) 



112. 

 Black Forest (Baden), *geol. struct, of, 



iv. (Part 2) 27-29 ; *flora of upper coal- 

 format, in, xxi. (Part 2) 5 ; New Red 



Sandst. in, xxi. 435. 

 Black Grain (Dumfries), Hartfell & Birk- 

 hill Beds, xxxiv. 288, 275 section & 



pi. xiii (map). 



