﻿'36 



GENERAL INDEX. 



[Nov. 1905, 



Thomas, H. H., 637. 



' Thorn - structure ' in serpentines, 



702, 703 et seqq. 

 Three-colour photography demon- 

 strating microscopic chars, of rock- 

 forming minerals, a ii. 

 Thrybergh (Yorks), 339. 

 Thysanoceras defined, 148. 

 Thysanoceras onychograpturn, nom. 



nov., 149. 



Orbignyi, nom. nov., 149. 



Thysanolytoceras, gen. nov., 149-50. 

 Tiberi, Mt. (Congo Free State), micro- 



cline granite-gneiss from, 658. 

 Tickenham (Somerset), Carb. Limest. 



of, 232. 

 Time-relations of sound & shock in 



Derby earthquake of 1904, 14- 15. 

 Toarcian (& Aalenian) Lytoceratidte, 



142 et seqq. 

 Toits Kraal (Transvaal), view showg. 



Glacial Oonglom. at, 684. 

 Tomes, R. F., obituary of, lv-lvi. 

 Tournaisian of Bristol area, 186 et 



seqq. ; fauna disting. fr. Visean do., 



263-61. 

 Traie Earkan (I. of Man), Agneash 



Grit at, 364 fig. 

 Transition Series (Coal-Measures), 309, 



310, 315, 319. 

 Transvaal (S.Africa), Glacial (Dwyka) 



Conglom. in, 679-89 figs. 

 Travernanzez Valley (Tyrol), chem. 



anal, of dolomite from, 107 ; mineral. 



structure of do., 121. 

 ' Travertine ' nr. Llanmartin, 379. 

 Tre Croci (Tyrol), rock-succession at, 



101 ; ehem. anal, of dolomite from, 



107 ; mineral, structure of do., 



122. 

 Treacher, L., & White, II. J. O., on 



the Age & Relations of the Phos- 



phatic Chalk of Taplow, 461-93 



figs. 

 Tregyff (Glamorgan), Rhastic, &c. a.t, 



400-402. 

 Tremadoc Beds of Arenig district, 



614-17. 

 Tresseysilt (Pembroke), enstatite - 



diabase, &c. of, 583-84, 594 & 



pi. xxxix. 

 Trevine (Pembroke), intrusive rocks 



of, 593. 

 Triple nomenclature in classif. sedi- 

 ment, rocks, lxxx. 

 Trophon (?) fr. Somaliland Eocene, 



166. 

 'True Coal-Measures,' use of term, 



546, 547. 

 Trust-funds, statement of, xxxvi- 



xxxvii. 



Tuff, submarine calcareous, fr. 



Schlern, 116. 

 Tugby (Leicestershire), 2, 6, 7. 

 Turhonellina formosa, 532-33 & pi. 



XXXV. 



Tardus iliacus (at Longcliffe), 56. 



Turritella f'Eocene) fr. Somaliland, 

 166. 



Tutcher, J. W„ 154, 266, 421. 



Twin-earthquakes, 18-34 figs.; twin- 

 character of Leicester earthquakes, 

 &c, 1-3; of Derby earthquakes, 10 

 et seqq. 



Twist Coal, marine band below, 500- 

 501. 



Ty-ganol (Glamorgan), 402. 



Tyne R., pre-Glacial valley of, 76, 79 

 figs. & pi. ix (map). 



Tyrol (S.), origin of dolomites of, 97- 

 141 w. map & pis. x-xiv (microscop. 

 sects.). 



Tytberington area (Gloucest.), Carb. 

 Limest. of, 219-25. 



Uelle district (Congo Free State), 

 641 ; physical features of, 643-44 ; 

 iron-mountains of, 646-48. 



Ulntacrinus in Taplow Chalk, 470, 

 478 et seqq. 



Ulrichospira, subgen. nov., 569. 



similis, sp. nov., 569 & pi. xxxvii. 



Unconformity betw. Lias & Oolites in 

 N.E. Yorks, 452; in Arenig district, 

 617-18 ; betw. Eocene & Cretaceous 

 in parts of Egypt, 675-76, 677-78. 



Upton Cheney (Gloucest.), White 

 Lias, &c. of, 419-20. 



Uradu Limestone, Tertiary age of, 

 157 ; Calamophy Ilia from, 174. 



Ursus horribilis (?), 50 & pi. vii. 



Vallante, Col de (Piedmont), slaty 

 serpentine of, 711. 



Valleys, pre-Glacial, of Northumber- 

 land & Durham Coalfield, 64-96 

 figs. & pi. ix (map). 



Valpy, R. H., obituary of, lvi-lvii. 



Vankerckhovenville(CongoFreeState), 

 651 ; rocks from, 659, 660 & pi. xliii. 



Variation in the nature of earth- 

 movements, lxix-lxx ; of relative 

 intensity in twin-earthquakes, 26- 

 27 & fig. 



Variegation in Ken per Marls & other 

 calcareous rocks, 431-39 w. chem. 



Variolit'e of Garn Fechan, 582-83. 



Vaughan, A., on the Pala'ontological 

 Sequence in the Carboniferous 

 Limestone of the Bristol Area, 



