GENEKAL INDEX. 



645 



Microporella symmetrica, 436. 



Microsolena regularis, 191. 



Millstone Grit at Drybrook, Forest of 

 Dean, 211. 



Milne, Prof. John, award of the Wol- 

 laston Donation Fund to, Proc. 30. 



, and T. Gray, Esq., on the elas- 

 ticity and strength-constants of 

 Japanese rocks, 139. 



Mineral characters of Inferior-Oolite 

 sponges, 550. 



Minerals, Mr. C. J. Woodward on a 

 group of, from Lilleshall, Salop, 

 466. 



Mollusca, Rev. G, F. Whidborne on, 

 from the Inferior Oolite, 487. 



Monckton, H. W., Esq., on the Bag- 

 shot beds of the London Basin, 

 348. 



Monoporella sexangularis, 435. 



Monilivaltia caryophyllata, 180. 



■ fa ir for den sis, 181. 



Slatteri, 181. 



Moraines, action of, in damming val- 

 leys, 79. 



Morris, Alfred, Esq., Geological sketch 

 of Qniclong, Manaro, Australia, 

 Proc. 76. 



Moughtonand Settle, quarries between, 

 sections in, 104, 105. 



Mountain- and Hill-drift, 127. 



Mud, tidal, of the Severn, microscopi- 

 cal examination of the, 613. 



Muddy Creek, Victoria, Mr. A. Waters 

 on fossil Chilostomatous Bryozoa 

 from, 423. 



Murchison Fund, award of, to John 

 Young, Esq., Proc. 31. 



Murchison Medal, award of, to Prof. 

 H. R. Goppert, Proc. 30. 



Musk-Sheep, comparative measure- 

 ments of skulls of, 576 ; range of, 

 in North America, Northern Asia, 

 and Continental Europe, 577 ; ex- 

 istence of, in Britain, 577, 578. 



Myacites subsidcns, 535. 



Myoconcha implana, 530. 



■ unguis, 530. 



Myrmecium biretiforme, 550. 



depressum, 550. 



Mytilus primipilaris, 518. 



striatissirnus, 519. 



Nantley valley, section at Dorothea 

 quarries, 114. 



Nant Uwydd, section of puddle-trench 

 at the Rhyl reservoir, 115. 



Northampton Sand, so-called, of North 

 Oxon, Mr. E. A. Walfurd on tbe re- 

 lation of the, to the Clypeus-gi'it, 

 224. 1 



North Wales, Mr. T. M. Beade on the 

 Drift-beds of the North-west of Eng- 

 land and, 83. 



■ — — , drifts of the north coast 



and mountain-district of, 111. 



Nucula aequilateralis, 522. 



nuciformis, 523. 



subglobosa, 522. 



Nun's Chapel, St. David's, analysis of 

 Adinole from, 320 ; section from 

 Porth-seli to cliffs near, 268. 



Oats, Francis, Esq., on Mr. Dunn's 

 notes on the Diamond- Fields of 

 South Africa, 1880, Proc. 5. 



Ogof4lesugn, St. David's, plan ot 

 junction of granite with Cambrian 

 strata at, 278. 



Ogwen Bank, glacial mailings at, 113. 



Old Red Conglomerate at Drybrook, 

 211. 



Oldhaven beds, 205. 



Gap, section at east corner of, 



204. 



Oleandridium (Taeniopteris) Beyrichii, 

 Proc. 3. 



Olivine rock, analyses of, 208. 



Opis spathulostis, 529. 



Oroseris Slatteri, 192. 



Orthomerus Dolloi, 248. 



Ostrea concentrica, 489. 



costata, 489. 



explanata, 490. 



Knorrii, 490. 



palmetta, var. montiformis, 492. 



pyrus, 492. 



sphmroidalis, 493. 



Ottlev Hill, fossils from the Inferior 

 Oolite of, 242. 



, section at, showing denu- 

 dation of lower beds of Inferior 

 Oolite, 244. 



Ovibos moschatus, Prof. W. Boyd 

 Daw kins on the alleged existence of, 

 in the Forest-bed, and on its range 

 in space and time, 575. 



Owen, Prof. R., on generic characters 

 in the order Sauropterygia, 133. 



■ , on the skull of Megalosaurus, 



334. 



Oxford and Gloucester, Mr. R. F. 

 Tomes on the Madreporaria of the 

 Great Oolite of the counties of, 168. 



Oxfordshire, Madreporaria from, 555 ; 

 sections of Great Oolite in, 170, 

 171. 



, North, Mr. E. A. Walford on 



the relation of the so-called North- 

 ampton Sand of, to the Clypeus- 

 grit, 224. 



, , Oolitic sands of, '226. 



