72 



GENERAL INDEX. 



[Nov. 1900,. 



jpoma, ^1*1-1^ w. fig. & pi. xxv ; 



synonymy of, 488. 

 Monograptus varians, sp. nov., 467-68 



av. fig. & pi. xxv ; vars. a & (3 nov., 



468-69 & pi. xxv ; var. pumilus 



nov., 469 w. fig. & pi. xxv. 

 vomeriims,x&Y8. a, (3, & y, 403-406 



&figs. 

 vulgaris, sp. nov., 455-57 w. fig. 



& pi. xxv ; vars. a & (3 nov., 457 & 



pi. xxv ; zone of, delimtg. Wenlock 



& Ludlow, 422. 

 Monotremata, closely relat. to Anonio- 



dontia, 642. 

 Montgomery (Wales), Lr. Ludlow, 



etc. near, 445. 

 Monzonite, see Kentallenite. 

 Moonstone in Ceylon granulites, 596. 

 Moore, C. C, chein. anal, of Eed 



Crag, 739. 

 Morageeba Strand ( Waterford), felsi- 



tic rocks of, 666, 680, 681. 

 Mornington, see Mount Martha. 

 Mount Martha (Victoria), Eoc. calci- 



sponges from, 61. 

 Mourlon, M. F., elected F. O, iv. 

 Murciiison Geological Fund, list of 



recipients, xxx. 

 Murchison medallists, list of, xxix. 

 Murray, Kev. C, quoted, 326. 

 Muscovite-granite of Askurdas, 343. 

 Muttatugala, see Quartz-norite. 

 Mylonite-slate in Gilgit, 355. 

 Mynvdd Epynt (Builth district), sect. 



to Carneddau, 382. 



Names of Fellows in arrear read out, 

 xciv, xcv. 



Nanga Parbat (Gilgit), gramilite, etc. 

 _ of, 345-46. 



Nnnt-y-Gro (Rhayader), sect, along, 

 92 ; Silur. sequence of, 93-94. 



Natronmikroklin, see Anorthoclase. 



Necks of non-volcanic materials on 

 Waterford coast, 670-71. 



Neocomian of Somaliland, 43. 



Nepheline-syenite of Mt. Kenya, 208 

 & pis. xi-xii ; of Mt. Jombo, 223- 

 24&pl. xii. 



Neptunea, dextral & sinistral forms of, 

 their stratigraph. significance, 709- 

 11, 716, 718, 720 et seqq. 



iVm'fl<?rt -limestone (Neocom.) of So- 

 maliland, 43. 



New Zealand, eruptive rocks from, 

 493-510 & pi. xxvii (microsc. 

 sects.). 



Newbournian division of Eed Crag, 

 708, 720, 737. 



Newera Eliya (Ceylon), pyroxene- 

 gran ulites of, 593 & pi. xxxiii, 595. 



Newton, E. T., quoted, 289, 290. 



Newton, R. B., quoted, 43. 



Newtown Head (Waterford). felsite,. 

 diabase, etc. of, 658 & fig.,' 671-72 

 & fig., 674, 675, 682 et seqq. 



Nilhene (Ceylon), serpentine of, 

 599 ; scapolite- & wollastonite-bearg. 

 rocks of, 605 & pi. xxxiii ; graphite 

 of, 610-11. 



Nilt-Hini Limestones (Gilgit), 351. 



Nodosaria (DentalinaJ abnormis (?) r 

 259 & pi. xv. 



(? G-landulina) sp., 259 & pi. xv. 



Nomal (Gilgit), limest. & schists, etc.. 

 near, 349. 



Nordenskiold, Baron A. E., Mur- 

 chison Medal awarded to, xlii ; on 

 Discov. & Occurr. of Minerals 

 contg. Rare Elements, 521-30. 



North Hill (Malvern) & Worcester- 

 shire Beacon, geol. struct, of, 149- 

 55 & figs. ; sects, across High Wood 

 and, 154, 159. 



' Northern Complex ' of Anglesey, 

 233-56 w. figs. & pis. xiii-xiv (map 

 & sects.). 



Norwich Crag termed Icenian, 708, 

 721, 737-38; fauna of, 722-23; 

 inorganic constit. of, 743. 



Number of Fellows, For. Memb., & 

 For. Corr., ix-x, xxi. 



Oakley, Little (Essex), Waltonian 



Crag of, 717-18, 736 T 37. 

 Obsidian Island, see Tahua. 

 Obsidians fr. Tahua, 495-98 & pi. 



xxvii ; fr. Waitekauri, 498 & pL 



xxvii ; fr. Waihi Monument, 500 ; 



altered spherulitic, fr. Rotorua, 



506-507, 508 & pi. xxvii. 

 Ogof Gynfor (Anglesey), Llandeilo- 



rocks at, 236-37 ; Llanbadrig 



Series N.E. of, 240-41. 

 Ohiya (Ceylon), dolerite of, 598. 

 Old Radnor, Longmynd. inlier at, 



511-17 & pi. xxviii (map). 

 Old Red Sandstone, W r . of Wallsgrove 



Hill, 173-75 & sect; O.-R.-S. 



age (?) of intrus. rocks of Waterford 



coast, 690, 691. 

 Oldhamia, observats. on genus, 273- 



79, 281-84 & pis. xvii-xix. 



antiqua, 280-81 & pis. xvii-xix. 



radiata, 279-80 & pis. xvii-xix. 



Olenus Mitchinsoni, sp. nov., 619 & 



pi. XXXV. 

 Olivine-basalts of Mt. Kenya, 215, 



219. 

 Olivine-monzonite, see Kentallenite. 

 Oolites, Jurassic, asolian orig. of, 



578-81. 



