Vol. 50.] 



GENERAL INDEX. 



"49 



' Metapyrigen-gneisses,' 266. 

 ' .Vletasumatic quartzites,' 380. 

 Mica-diorite ot South Devon, 351. 

 Mica-like mineral replacing olivine, 



616 et seqq. 

 Microdiscus Meeki, head-shield, 414. 

 Microtus ( = Arvicola) agrestis, 197; 

 M. amphibius, 196 ; M. arvalis, 

 197; M. glareolus, 196; M. gre- 

 gcdis, 197 & pi. xi. ; M. ratticeps, 

 197 & pi. xi. 

 Middleton (Derbyshire), 611. 

 Miliolina agglutinans, 693. 

 Miller's Dale Station (Derbyshire) 



dolerite & tuff, 631. 

 Milne, J., Lyell Medal awarded to, 



Proc. 37. 

 Minninglow (Derbyshire), 610. 

 Miocene in Libyan Desert of Egypt, 



535. 

 Moel Goronwy (Caernarvonshire), sec- 

 tion across, 597. 

 Moel Tryfaen (Caernarvonshire), suc- 

 cession at, 580. 

 Mokattam Beds in Libyan Desert, 



535. 

 Molluscs in Upper Keuper at Shrew- 

 ley, 170 ; in Ighthain fissure, 182, 

 183. 

 Molteno Beds in S.E. Africa, 552.| 

 Monckton, H. W., on a Variety of 

 Ammonites (Stephanoceras) sub- 

 armatus, Young, from the Upper 

 Lias of Whitby, Proc. 4 ; on Pici ite 

 & associated rocks at Barnton, near 

 Edinburgh, 39. 

 Monk's Dale (Derbyshire) tuff, 629. 

 Moraines, old, on Mount Kenya, 518, 

 520 ; terminal moraines of Lewis 

 glacier, 522 fig. 

 Murchison Fund award to G. Barrow, 



Proc. 36. 

 Murchison Medal awarded to W. 



T. Aveline, Proc. 35. 

 Murchison Medallists, list of, Proc. 



23. 

 Mus Abbotti, sp. nov., 195 & pi. xi. ; 



M. sylvaticus, 194 & pi. xi. 

 Mustela robiista, sp. nov., 200 & pi. 

 xi. ; M. vulgaris, var. minuta, 201 

 & pi. xi. 

 Mustione (Italy), 250. 

 Myalina, restriction of name, 438. 

 Myodes lemmics, 196 & pi. xi. ; M. 

 torquatus, 196 & pi. xi. 



Nass (Norway), bostonite-breccias, 25. 



Saiadites in Coal-measures of Nova 

 Scotia, 435 & pi. xx. ; synonymy of, 

 439 ; N. carbonarius, 440 & pi. xx. 



Names of Eellows read out, Proc. 

 148. 



Nerina?a-limestone in Gosau district, 

 128, 132. 



New Lodge (Berks), artesian boring 

 at, 152, 496. 



Newton, E. T., on Vertebrate Fauna 

 from Ightham fissure, 188 & pis. 

 x.-xii. 



Nile Valley, erosion of the, 541. 



Nodosaria (Dentalina) brevis, 70(5 ; 

 N. Fontannesi, 707 ; N. limbata, 

 707 ; N. obscura, 707 ; N. prisma- 

 tica, 707 ; N. Rcemeri, 706; N. tenui- 

 costa, 707 ; N. xiphioides, 707. 



Nondweni (Zululand), auriferous 

 quartzite from, 388, 389, 564. 



Nonionina scapha, 724. 



Nova Scotia, Naiadites in Coal-forma- 

 tion of, 435 & pi. xx. 



Novaculites, origin of, 377 & pi. xix. 



Nubian Sandstone in Libyan Desert, 

 533, 546. 



Number of Fellows, etc., in 1893, Proc. 

 14. 



Oberalp Pass (Switzerland), 287. 



Obsidian, perlitic cracks, etc. in, 11, 

 12. 



Oldham, B. D., on Comparison of 

 Permian Breccias of Midlands with 

 Upper Carboniferous Glacial De- 

 posits of India and Australia, 463. 



Oie?ielloides, subgen. nov., 668 ; O. ar- 

 matus, sp. nov., 669 & pi. xxxii. 



Olenellus-zone, additions to fauna in 

 N.VV. Highlands, 661 & pis. xxix.- 

 xxxii. 



Olenellus asaphoides, 415, 416, 423 ; 

 O. giyo.s, sp. nov., 666, fig. 1 & 

 pi. xxxii. ; 0. Gilberti, 671 & pi. xxxii. ; 

 O. intermedins, sp. nov., 666 & 

 pi. xxxii. ; 0. Lapworthi, 662 & 

 pls.xxix., xxx., xxxii.; O. L.rar. elon- 

 gatus, nov., 664 & pi. xxix. ; O. reti- 

 culatus, sp. nov., 665, 673, fig. 2, & 

 pis. xxx.-xxxi. 



Oli vine-crystals, perlitic cracks in, 

 374, 375 ; in Derbyshire lavas de- 

 scribed, 611 ; pseudomorphs after, 

 613,614. 



Oliviue-dolerite of Jebel Burka, 533 ; 

 of Derbyshire, 624. 



Olivine-gabbro-diabases of Gran dis- 

 trict, 18 ; analyses of same, 19, 20 ; 

 contact-metamorpbism by, 21. 



Oolite (Inferior) of Shipton Gorge, 

 polyzoa from, 72 & pis. ii.-iv. 



Oolite, silicified, 93. 



Ordovician rocks, papers on, summa- 

 rized, Proc. 78. 



Ossiferous fissures near Ightham, 171 ; 

 plants and invertebrata in, 181 ; 

 vertebrate fauna from same, 188 



