GENERAL  INDEX. 
595 
Yol.  49.] 
Mb  or  pitclistone,  550  ;  in  Tormore 
pitchstones,  559-560. 
Spilsby  Sandstone,  468  et  seqq. 
Spongodiscus  sp.,  224;  Sp.  expansus, 
n.  sp.,  224. 
Spongolena  symmetrica,  n.  sp.,  224. 
‘  Spotted’  Jurassics,  89  et  seqq. 
Staniland,  M.,  467. 
Staurolite,  in  N.E.  Forfarshire,  340, 
349. 
Stelidioseris,  n.  g.,  576;  St.  gibbosa, 
n.  sp.,  577. 
Stichocapsa  chrysalis,  n.  sp.,  225  j  St. 
pinguis,  n.  sp.,  225. 
Stockdale  Shales  in  Wasdale  Beck, 
365. 
Stoford  (Somerset),  section,  484. 
Stoke  Row.  section  from,  to  Silehester, 
311. 
Stolla  (South  Tyrol),  36,  76. 
Stone  (Hants),  fossiliferous  Pleisto¬ 
cene  at,  325 ;  section  in  sea-cliff 
near,  326. 
Striations,  glacial  (Pres,  addr.),  Proc. 
81. 
Strudelkopf  (South  Tyrol),  76,  77. 
Stuores  Wiesen,  (do.),  18  &  Map  A, 
63 ;  section,  19. 
Stylocoenia,  569,  575. 
Styloseris  (pre-occupied  name),  576. 
Submergence,  supposed,  in  Jersey, 
528. 
Sues  Koff  (South  Tyrol),  section,  34. 
Sulcuna  prGecurrens,  n.  sp.,  304. 
Sutton  Stone  (South  Wales),  corals 
from,  574. 
Swaby  (Lincolnshire),  477. 
Swinyard’s  Hill  (Malvern),  413,  415, 
418. 
Tairffynnon  Breccia,  460. 
Tait,  Magnus  M.,  558. 
Talfan  (Caermarthen),  166. 
Tanganyika,  rise  and  fall  of,  579. 
Tanna  (New'  Hebrides),  volcanic  phe¬ 
nomena  at,  227. 
Tarannon  Shales,  426  et  seqq. 
Tarfside  (Forfarshire),  345. 
Tarn  Nevin  (Bassenthwaite),  531,  534. 
Tate,  A.  Norman,  obituary  of,  Proc . 
60. 
Taunton,  John  H.,  obituary  of,  Proc. 
61. 
Tavy  Valley  (Devon),  granite  iu,  387 , 
392. 
Tealby  Clay,  468  et  seqq. 
Teall,  J.  J.  H.}  on  New  Hebridean 
Volcanic  Rocks,  229  ;  and  H.  Fox, 
on  Coast-sections  at  the  Lizard, 
199  ;  on  Radiolarian  Chert  from 
Mullion  Island,  211. 
a  J.  (j.  S.  No.  196. 
Tectonic  relations,  of  rocks  in  Southern 
Tyrol  (with  map),  58  et  seqq. 
Tees  district,  New  Red  in  (Pres, 
addr.),  Proc.  139. 
Tertiary  geology  (Pres,  addr.),  Proc. 
98  ;  Tertiary  granite-inclusions  in 
gabbro  of  Cuillin  Hills,  175  ;  Ter¬ 
tiary  marls  and  clays  in  Maltese 
Islands,  117. 
‘  Tesselated  ’  structure  in  granite,  388, 
396. 
Tetragraptus-beds  (Caermarthen),  166. 
Thames,  gravels  south  of,  308  ; 
Thames  Valley,  origin  of,  308,  323. 
Thomson,  E.  C.,  546. 
Tilehurst  plateau-gravel,  308. 
Tilgate  Grit, mammalian  incisor  in, 281 . 
‘  Toarcian,’  use  of  term,  480. 
Toblach  Valley  (South  Tyrol),  69,  72, 
77. 
Tofana  (do.),  14,  67  ;  sections,  29,  30. 
Tol-du  (Mullion,  Cornwall),  213. 
Tomes,  R.  F.,  on  Affinities  01  Astro- 
ccenia,  569 ;  on  a  New  Genus  of 
Madreporaria  ( Stelidioseris )  from 
Sutton  Stone  of  South  Wales,  574. 
Tongoa  (New  Hebrides),  volcanic 
phenomena  at,  229 ;  rocks  from, 
229,  230. 
Tormore  (Arran),  composite  dykes, 
551-561 ;  plans,  554,  555,556,558; 
map  of  shore,  552;  .general  struc¬ 
ture  of  dykes,  553;  chemical  com¬ 
position,  558;  microscopical  cha¬ 
racters,  559. 
Tourmaline,  in  N.E.  Forfar  rocks, 
342 ;  in  Dartmoor  rocks,  392. 
Tourmaline -grit,  in  Thames  \  alley 
gravel,  310. 
Tra-i-Sassi  (South  Tyrol),  13,  66,  67. 
Travernanzes  (do.),  67. 
Travers,  M.  W.,  532. 
Tregwyn  (Mullion,  Cornwall),  213. 
Triassic  geology  (Pres,  addr.),  Proc. 
134  ;  Upper,  in  Enneberg  and  Ani- 
pezzo  (South  Tyrol),  diagram  facing 
p.  47. 
Tridymite  in  Cir  Mhor  pitclistone, 
549,  550. 
<  Trigonia-grit,’  Lower  (Inf.  Oolite), 
509,  512  ;  Upper,  511. 
Troger  Bach  (South  Tyrol),  71 ;  section, 
35. 
Truellii  hemera,  483  et  seqq. 
Trust-funds,  statement  for  1892,  Proc. 
32-33- 
Tsad,  Lake,  579. 
Tschampigel  Keller  (Switzerland),  99. 
Tuscan  Archipelago,  rocks  of,  144.  ^ 
Ty-isaf  (North  Wales! ,  431,  437  ; 
section,  431. 
