Leaf-beds of the Isle of Mull.
_Leda; truncata_.
_Leguminosites Marcouanus_.
Lemming.
_Lepadidoe_.
_Lepadocrinus Gebhardi_.
_Leperditia; canadensis_.
_Lepidaster_.
_Lepidechinus_.
_Lepidesthes_.
Lepidodendroids.
_Lepidodendron; Sternberg_.
_Lepidoptera_.
_Lepidosiren_.
_Lepidosteus_.
_Lepidostrobus_.
_Lepidotus_.
_Leptoena; Liassica; sericea_.
_Leptocoelia; plano-convexa_.
Lias.
Lichas.
_Licrophycus Ottawaensis_.
Lignitic Formation of North America.
Lily-encrinite.
_Lima_.
Lime, phosphate of.
Limestone; varieties of; origin of; microscopical structure of;
Crinoidal; Foraminiferal; coralline; magnesian; metamorphic;
oolitic; pisolitic; bituminous; Laurentian.
_Limnoea; pyramidalis_.
_Limulus_.
_Lingula; Credneri_.
Lingula Flags.
_Lingulella; Davisii; ferruginea_.
_Liriodendron; Meeki_.
_Lithostrotion; irregulare_.
_Lituites_.
Lizards (see _Lacertilia_).
Llama.
Llanberis Slates.
Llandeilo rocks.
Llandovery rocks; Lower; Upper.
Lobsters.
Loess.
London Clay.
Longmynd rocks.
_Lonsdaleia_.
_Lophiodon_.
_Lophophyllum_.
Lower Cambrian; Chalk; Cretaceous; Devonian; Eocene; Greensand;
Helderberg; Laurentian rocks; Ludlow rock; Miocene; Old Red
Sandstone; Oolites; Silurian period; rocks of, in Britain; in
North America; life of.
_Loxonema_.
Ludlow rock.
_Lycopodiaceoe_.
Lynton Group.
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