- 
GENERAL INDEX. 873 
from Guernsey, Prof. Bonney on, 
420. 
Microsolena expansa, 722. 
——, sp., 0/4. 
, Sp., 722. 
Middelburg, section from near 
Bloemhof to near, 661. 
Moel-Tryfaen, conglomerate from, 
204. 
ee from Bridlington Quay, 
Monte Somma, external form and 
features of, 35. 
and Vesuvius, eruptive 
activity of, 44. 
Montlivaltia caryophyllata, 710. 
perlonga, 362. 
—— rheetica, 363. 
—— Rigauxi, 710. 
—— simplex, 363. 
Walliz, 363. 
Morpeth Dyke, 239; analysis of the 
rock of, 239. 
Murchison Medal, award of the, to 
Dr. Henry Woodward, Proce. 31. 
Geological Fund, Award of 
the, to Martin Simpson, Esy., Proc. 
32. 
Neocomian ? beds in the Richmond 
well-boring, 738. 
Newton, Mr. E. T., award of the 
Wollaston Donation Fund to, Proc. 
30. 
——, on antelope remains in Newer 
Pliocene beds in Britain, with the 
description of a new species, Ga- 
zella anglica, 280. 
, on fishes from Bridlington 
Quay, 322. 
Nidulites favus, 834. 
North Devon, Westward Ho!, Mr. 
Spearing on the recent encroach- 
ments of the sea at, 474. 
Northampton, Mr. Eunson on the 
range of Palzozoic rocks beneath, 
482. 
Nucula albensis, 128. 
antiquata, 134. 
arduennensis, 180. 
bivirgata, 182. 
capseformis, 127. 
Cornueliana, 129. 
gaultina, 134. 
wmpressa, 128. 
Meyert, 130. 
obtusa, 126. 
ovata, 125. 
—— pectinata, 132. 
— planata, 126. 
simplex, 129. 
Nuculide, British Cretaceous, Mr. 
Gardner on, 120. 
Nun’s Chapel, view west of, 296 ; 
Cambrian conglomerate resting on 
edge of Pebidian beds in cliff 8.E. 
of, 525; plan of coast south of, 
526. 
—— district, Cambrian and 
Pre-Cambrian rocks of, 524. 
Oculospongia minuta, 782. 
Ogfeydd-duon, cliff-section between 
Castell and, 542. 
Ogof-golchfa, plan of, 298; sketch 
of cliffs on south side of, 543. 
Ogof-llesugn, Cambrian and Dimetian 
rocks at, 5386; plan of, 300; section 
showing contact of Cambrian with 
Dimetian in cliff at, 537; mass of 
Cambrian conglomerate on shore, 
west side of, 539; Dimetian broken 
up by a dyke on shore at, 539. 
Oolite in the Richmond well-boring, 
(41. 
, Great, in Meux’s Well, 744; 
general characters of the, under 
London, 747. 
Oolitic Madreporaria of the Boulon- 
nais, Mr. Tomes on the, 698. 
Orange Free State, Cape of Good 
Hope, Sir R. Owen on a Labyrin- 
thodont amphibian from the, 333. 
Ordovician times, geography of the 
Anglesey region in, 582. 
Ornithorhynchus (recent), pelvis of, 
ELOGNGO: 
Orsedd-y-person, section through, 573. 
Orta, map of the southern end of 
the lake of, 856. 
Orton, boring at, 491. 
Ostracoda, Prof. Jones on the, from 
a deep boring at Richmond, 765. 
of the shelly patches at 
Bridlington Quay, Dr. Crosskey on 
the 323. 
Otterton Point, section through, 
258. 
Owen, Sir Richard, on the skull and 
dentition of a Triassic mammal 
(Tritylodon longevus, Owen) from 
South Africa, 146. 
, on the cranial and vertebral 
characters of the Crocodilian ge- 
nus Plesiosuchus, Owen, 153. 
—,ona Labyrinthodont amphibian 
(Rhytidosteus capensis) from the 
Trias of the Orange Free State, 
Cape of Good Hope, 333. 
Palzozoic axis, position and nature of 
the, under London, 752. 
