GrENEKAL INDEX. 



743 



Norfolk, 545 ; fossils of the, in 



West Suffolk and Norfolk, 571; 



minute structure of the, in West 



Suffolk and Norfolk, 580. 

 Gayton, Totternhoe Stone at, 558 ; 



exposure of Grey Chalk at, 568; 



section at, 569 ; Melbourn Rock 



near, 569. 

 Genesis of the crystalline schists of 



the Malvern Hills, 525. 

 Geology, superficial, of the southern 



part of the Wealden Area, Mr. J. 



V. Elsden on the, 637. 

 Giant Buttress, Eotomahana, 170. 

 Glacial action in the Carboniferous 



and Hawkesbury series, New South 



Wales, 190. 

 ■ beds, Carboniferous, in Aus- 

 tralia, 190. 

 Period, considerations on the, 



with reference to the antiquity of 



man, 393 ; dates assigned to, 393- 



395. 



periods, supposed recurrence of, 



395, 396. 



Glacier-movements, seasonal fluctua- 

 tions of, 398, 401. 



Glaciers, arctic, phenomena of, 399. 



Glauconitic marl at Stoke Ferry, 548, 

 557 ; at Crimplesham, 557 ; of West 

 Suffolk and Norfolk, minute struc- 

 ture of the, 582. 



Glaucophaneamphibolites of the He de 

 Groix, 303. 



Glendalough, igneous rocks of the 

 neighbourhood of, 519-522. 



Globicephalus uncidens, 16. 



Glovelier, 231, 239. 



GlyphastrcBa Forbesi, Ed. & H., from 

 the Tertiaries of Maryland, U.S., 

 24. 



Glyptostrobus europcsus, 289. 



Gneiss, banded, of the Pouldu, section 

 of contorted, 308. 



- — , biotite-, from North Hill, Mal- 

 vern Range, 494. 



, hornblende-, formed from dio- 

 rite, in the Malvern Hills, 528. 



, hornblendic, from the Here- 

 fordshire Beacon, Malvern Range, 

 496. 



, micaceous, intrusions of granite 



in, on the Belon River, Brittany, 

 313. 



, mica-, formed from granite, in 



the Malvern Hills, 528. 

 , duplex diorite-, 523 ; granite- 



diorite-, 533. 



of Gal way, 523, 524. 



Gneisses of Quimperle, 305, 307, 



308. 



Gneissic quartz -syenite from North 

 Hill, Malvern Range, 490. 



and other crystalline rocks of 



the Malvern Hills, 482, 483. 



rocks, association of, with ig- 

 neous masses in the Malverns, 

 533. 



Goathurst Hill, section through, 388. 

 Gobat, 234. 



Gorrick Plantation, section through, 

 388. S 



Goyag range, 457. 



Grand Moie, Sark, 327. 



Granite, intrusion of, in a micaceous 

 gneiss on Belon River, Brittany, 

 313. 



, overlying, of Sark, 328. 



, sections of, in jointed diorite, 



near Glendalough, 519, 520. 

 , sections of diorite in, near 



Glendalough, 520, 521. 



of Galway, foliation of the, 522. 



, mica-gneiss formed from, in the 



Malvern Hills, 528. 

 from the Worcestershire Beacon, 



Malvern Range, 495. 

 or pegmatite, from Swinyard's 



Hill, Malvern Range, 501. 

 , boulder of red, in ancient beach 



S. of Saunton Down, 666. 

 fragments, absence of, in the 



Essex Drift, 352. 

 Granite-diorite-gneiss, 533. 

 Granite- vein, contorted, in gneiss, 



527. 



Granites near Roscoff, 316. 

 Granulite from the Worcestershire 



Beacon, Malvern Range, 494. 

 Granulites, fragments of, in the Essex 



Drifts, 358. 

 Grass-tree, Carboniferous glacial beds 



at, 192. 



Gravel of Ardtun, Mr. G. A. J. Cole 

 on the constituents of the, 276. 



Gravels and leaf-beds of Ardtun, 

 Carsaig, &c. in Mull, 270. 



Gravel-pit Hill, Aldershot, section 

 from, to Ash Green, 435. 



Greenland, great ice-sheet of, 399. 



Greensand, Cambridge, in West Suf- 

 folk and Norfolk, 545. 



, , Patricosaurus merocratus, 



Seeley, from the, 216. 



Gresley, Mr. W. S., on the formation 

 of coal-seams, as suggested by evi- 

 dence collected chiefly in the Lei- 

 cestershire and South Derbyshire 

 coal-fields, 671. 



Grey Chalk of West Suffolk and Nor- 

 folk, 596; fossils of the, 579; 

 minute structure of the, 584. 



