INDEX. 
97 
Lockart, M., on the fossil remains of the 
Orleanais, '219 
Loess of the valley of the Rhine, 151 
mineral, compositioo of the, 151 
' its thickness and origin, 152 
— — gravel, &c. alternating with, 153 
— list of shells from the — see Appendix 
II., 58 
Loire, tertiary strata of the basin of the, 
20 
relative age of the strata of the — see 
diagram No. 3, 20 
1 faluns* of the, 203 
London basin, tertiary deposits of the, 18, 
277 
— — on the former continuity of the 
Hampshire and, 283 
fossil shells of the — see Tables, Ap- 
pendix I. 
proportion of living species in the 
fossil shells of the — Appendix I., 50 
London clay, its composition, thickness, 
&c, 279 
— — septaria of the, 279 
the fossil shells identifiable with 
those of the Paris basin, 280 
organic remains of the, 280 
Lower green-sand described, 286 
Lower Rhine, see Rhine. 
Lucina divaricata, wide geographical 
range of the, 254 
Luy, section of tertiary strata in the valley 
of the — see diagram No. 51, 207 
Maars, or lake-craters of the Eifel — see 
wood-cuts Nos. 49 and 50, 195, 196 
how formed, 196 
Macculloch, Dr., on the parallel roads of 
Glen Roy, 131 
— — sub-Apennine strata termed marine 
alluvia by, 157 
on the granite veins of Cape Wrath, 
in Scotland, 354 
on the junction of granite and lime- 
stone in Glen Tilt, 356 
on the granitic rocks of Shetland, 357 
on the granite of Sky, 358 
t - on the trap rocks of Scotland, 360 
on the granite of Aberdeenshire, 
361 
on the passage of gneiss into granite, 
372 
Macigno of the Italians the greywacke of 
the Germans, 162 
Maclure, Dr., on the geology of the Lee- 
ward Islands, 132 
on the volcanic district of Olot in 
Catalonia, 184 
his observations preceded by those 
of Don Bolos, 193 
Madeira, fossil shells of recent specie3 
brought from, 134 
Vol. III. 
Madeira,' vertical dikes of compact lava 
seen in, 134 
violently shaken by earthquakes dur- 
ing the last century, 134 
Maestricht beds, fossils of the, 324 
— chasm between the Eocene and, 
325 
number of fossil shells common to 
the chalk and, 325 
number common to the upper green- 
sand and, 325 
Magnan, river, 167 
— — ■ section from Monte Calvo to the sea 
by the valley of — see diagram, No. 29, 
167 
Malaga, tertiary strata of, 170 
Mammalia, fossil, importance of the re- 
mains of, 47 
duration of species in, more limited 
than in testacea, 140 
shells of living species found with 
extinct, 140 
Mammiferous remains of the successive 
tertiary eras, 59 
Mammoth, tusk of the, found in calcareous 
tufa near Rome, 139 
Man, remains of, now becoming imbedded 
in osseous breccias in the Morea, 144 ■ 
Mantell, Mr., on the fossil shells of the 
crag, 171 
on deposits containing recent shells 
in the cliffs near Brighton, 1S2 
on tertiary outliers on the chalk, 
283 ' 
on the secondary rocks of the Weald 
valley, 286 
his section of the valley of the 
Weald, with the heights on a true 
scale — see wood-cut No. 64, 288 
his section from the North escarp- 
ment of the South Downs to Barcombe 
— see wood-cut No. 71, 296 
on the absence of chalk detritus on 
the central ridge of the Weald, 296 
his section of a fault in the cliff-hills 
near Lewes — see wood-cut No. 76, 
301 
his discovery of the Mososaurus of 
Maestricht in the English chalk, 325 
Map of the volcanic district of Catalonia 
— see wood-cut, No. 43, 184 
■ of the volcanic region of the Eifel — 
see wood-cut No. 48, 194 
■ ■ of Auvergne, showing its geographi- 
cal connexion with the Paris basin — see 
wood-cut No. 56, 226 
Marculot, fresh-water limestone of, 232 
Mardolce, grotto of, bones of extinct quad- 
rupeds found in the, 140 
pierced in the interior by boring 
testacea, 141 
— —breccia in, how formed, 141 
9 
