Vol. 52.] 



GENERAL INDEX. 



'87 



Dawson, Sir William, exhibits & 

 comments on specimens of Eozoon 

 canadense, cxxvii. 



Deckenschotter, Subalpine, character- 

 istics and origin of, 557. 



Deeley, R. M., Discovery of Mam- 

 malian Remains in the old River- 

 gravels of the Derwent near Derby, 

 Part II., 501-509 figs. 



Defrancia (Pelagiaj Eudesii, 146. 



Denbighshire Grits and Flags, at 

 Conway, 281 ; correlated with those 

 of other areas, 287. 



? Dendrophrya erecta, 487. 



Dentalium turoniense, sp. nov., 96 & 

 pi. iv. 



Denudation, effects of, in Tertiary 

 Volcanic series of North-western 

 Europe, 402. 



Derby, Mammalian remains in old 

 river-gravels near, 497. 



Derbyshire, gypsum- deposits of, 461. 



Derwas fault (Dolgelly), slates, etc. 

 west of, 516. 



Derwent River, discovery of mamma- 

 lian remains in old gravels of, 497- 

 509 figs. 



Devon, Cenoinanian succession in, 110; 

 minute structure of Cenom. beds of, 

 136 ; list of Cenom. fossils from, 

 158 ; (North), Morte Slates, etc. in, 

 254-270 figs. & pis. x.-xi. (fossils). 



Devonian fossils (derived) from Kol- 

 guev, 60, 61 



Diabases, intrusive, in neighbourhood 

 of Dolgelly, 517. 



Dicranograptus-shales near Caermar- 

 then, 530; compared w. do. else- 

 where, 534. 



Didymograptus bifidus-beds near 

 Caermarthen, 527 ; compared w. 

 do. elsewhere, 533. 



Didymograptus Murchisoni - shales 

 near Caermarthen, 529 ; compared 

 w. do. elsewhere, 534. 



Diestien in Belgium, 754 ; mollusca, 

 list of, 764. 



Differentiation, magmatic, extrusive & 

 intrusive igneous rocks as products 

 of, 606-617 & pi. xxix. (map). 



Discorbina obtusa, 488 ; D. rosacea, 

 488. 



Dolgelly (Merionethshire), Lingula- 

 Elags and igneous rocks of neigh- 

 bourhood, 511-522 figs. & pi. xxiv. 

 (map). 



Donnington (Lincolnshire), Claxby 

 Ironstone, etc. nr., 201 et seqq. 



Dorippidse, structure of, cxi. 



Dorset, Cenomanian succession in, 

 107 ; Eocene deposits of, 490-495. 



Dorset-Somerset area, correlation of 

 strata w. those of Dundry Hill, 

 704 & table vi. 



Drewton (Yorks.), section descr., 190. 



Drifts in North-eastern Anglesey, 

 630. 



Dromiacea, known fossil, ex. 



Duke, Rev. E., obituary of, lxxvi. 



Dumortieria-beds of Dundry, 707. 



Dun Mor (Sanday), view of, pi. xvii. 



Dun Peag (Sanday), sections, 367, 

 368 ; views of, pis. xviii. & xix. 



Dundry Hill : its Upper Portion, or 

 the P>eds marked as Inferior Oolite 

 {g 5) in the Maps of the Geological 

 Survey, 669-720 w. tables, section, 

 & map (p. 715). 



Dunmurry Hill (Kildare), sedimentary 

 rocks of, 595. 



Dykes, in Lizard district, 42 ; Ter- 

 tiary, in North-western Europe, 

 382 ; in North-eastern Anglesey, 

 629.' 



Earthquake-catalogue, formation of, 



651. 

 East Anglia, geol. map of, pi. xxxv. 

 East Keal (Lincolnshire), section nr. 



descr., 204. 

 Eastbourne (Sussex) vert, section facg., 



172. 

 Echinodermata, Cenomanian, 143. 

 Eichthal (^Switzerland), section at, 



562. 

 Electric Peak (Yellowstone Pk.), rela- 

 tion of igneous rocks to other 



eruptions in the region, 609. 

 Elles, G. L., and E. M. R. Wood 



on the Llandovery and Associated 



Rocks of Conway (North Wales), 



273-288 with map & sections. 

 Emarginula aff. divisiensis, 85 ; E. 



Sanctae - Catharinae, 85 ; E. sp. 



(Chalk Rock), 85. 

 England, seismic phenomena in, 655, 



656 w. maps. 

 Enys Head (Cornwall), serpentine & 



granulite at, 30 figs. 

 Eocene deposits of Dorset, 490-495. 

 Eozoon canadense, specimens exhibited, 



etc., cxxvii. 

 Epidosite(?) nr. Porthoustock Cove, 



42. 

 Epidote, its occurrence in Loch Sca- 



vaig rocks, 386. 

 Erratics from Xolguev Island, report 



on, 58-63 ; in the Kola Peninsula, 



726 et seqq. figs. 

 Eryontida?, structure of, & known 



fossil, ci. 



