Vol. 63.I 



GENERAL INDEX. 



531 



Thomas, H. H., Petrographical Notes 

 [on Bocks from the Batoka Gorge 

 of the Zambezi, Sec], 207-11. 



Three Houses, see Thicket. Hill. 



Thrust-plane betw. O. E. S. & Silur. 

 in E. Mendips, 235. 



Tideswell Dale (Derbyshire), lava of, 

 247 ; T. D. Sill, 273-74. 



' Tie Pits,' nr. Atherfield Point (I. of 

 Wight), 50. 



Timbo (Brazil), Cretaceous along rail- 

 way to, 131. 



Time-relations of sound & shock in 

 Swansea earthquake, 357-58. 



Timsbury Sleight (Somerset), sect, 

 descr., 413-16, & table iii, facing 

 416 ; list of microzoa in Upper 

 Coral-Bed at, 413-14 ; hemerse of 

 Liassic ammonites at, 415. 



Tissington area (Derbyshire), toad- 

 stones of, 266-71 & pi. xxii (map) ; 

 vert. sect, showg. Yoredale Series, 

 249. 



Titaniferous basalts of W. Mediter- 

 ranean, 69-79 w. chem. anals. 



Toadstones of Derbyshire, their field- 

 relations & petrography, 241-81 

 sects. & pis. xix-xxii (maps). 



Toarcian in Doulting railway-cutting, 

 390. 



' Torf '-tracts in Zambezi Basin, 169- 

 70. 



Torquay (Devon), age & origin of 

 plateaux around, 106-23 figs. 



Tortworth (GUoucest.), 237. 



Trap or lava in Silurian inlier of E. 

 Mendips, 219-22, 230-32. 



Tremolite, artificial fusion of, 154. 



Trent E., former & present courses of, 

 487 et segq. 



Treplin, E. C, 219. 



Trias, of Lossiemouth, Scleromochlus 

 Taylori from, 140-44 fig. & pi. ix ; 

 Triassic Drift in Oxford area, 497- 

 99. 



Trigonella Fleuriausa, 339-40 & pi. 

 xxiv. 



Trigonelline,, gen. nov., definition of, 

 342. 



pectunculus, 340 & pi. xxiv. 



Triqonia-Qxrit (Upper), in Bath- 

 moulting district, 384-86, 390 

 et seqq. ; in Eissingtons-Burford 

 district, 439 et seqq. 



Trowbridge (Wilts), suggested Glacial 

 lake, 483-86 & pi. xxxii (map). 



Truellii hemera, deposits of = Upper 

 Coral -Bed, 387 et seqq., 439 et seqq. 



Trust-funds, statement of, xxxviii- 

 xxxix. 



T.sheza's (Ehodesia), 199. 



Tshimamba Cataracts (Ehodesia), 

 sketch-plan of Batoka Gorge at, 189; 

 view of Batoka Gorge below, pi. xiii ; 

 granulitic dolerites from, 209. 



Tufa, deposited by calcareous spring 

 on N. Cornwall coast, 12; (& sur- 

 face-limestone) in Zambezi Basin, 

 202-204. 



Tuffs in Zambezi Basin, 184, 210; 

 tuffs, &c. in Silurian inlier ,of E. 

 Mendips, 222-26 figs., 233-38 & 

 pi. xviii ; of Carb. Limest. age, in 

 Miller's-Dale area, 253-56; do. in 

 Matlock area, 263, 265-66 ; of Yore- 

 dale age, in Tissington area, 270. 



Tunstead (Derbyshire), 245, 246. 



Tut Hole (Devon;, anticline at, 7- 



Tutcher, J. W. [on Stantonbury-Hill 

 outlier], 418. 



Twerton-Hill Quarry (Somerset), sect, 

 descr., 416-17. 



Twin-character of Swansea earth- 

 quake, 355. 



Uff, J. J., 29, 34. 



Ugbrooke type of Culm measures, 6. 



Umgwezi E. (Ehodesia), 193. 



Unconformity, betw. Benin Sands & 

 Ijebu Beds, 309. 



Underground water, influence of pres- 

 sure & porosity on motion of, 80- 

 105 figs. & pi. v (map). 



Unicarinate & uniplicate develop- 

 mental stages (test - ornament of 

 brachiopods), 341 & pi. xxiv. 



Unioniform shells fr. Cretaceous of 

 Bahia, 139. 



United States Geological Survey, maps 

 presented, lxx. 



Upper Coral-Bed (Inf. Oolite), in 

 Bath-Doulting district, 387-88 ; at 

 Timsbury Sleight, list of microzoa 

 from, 413-14. 



Upton, C, 387; Comparative Table 

 of the Microzoa from the Upper 

 Coral-Bed, 413-14. 



Ussher, W. A. E. [on the Culm of 

 W. Devon & N. Cornwall], 5-6, 

 27-28 ; presents his geol. map. of 

 Devon, lxx. 



Utchi (S. Nigeria), 317. 



Uwet (S. Nigeria), ' Fruchtschiefer ' of, 

 313, 315-16 w. sect. 



Vallis Vale (Somerset), sect, descr. & 

 fig., 400-404. 



Variation of pressure (flow of water) 

 in interstices of a rock, experimental 

 data on, 94-95 ; var. of water-level 

 in different districts, 98-100. 



