INDEX.
 

[The fossils here enumerated are those illustrated by figures in the text.]
 

Abereiddy Bay, Lower SUurian rocks in,
53.

Abich, M., 27, 307, 368.

Acervularia ananas, 220.

Acidaspis Barrandii, 235.

------bispinosa, 206.

------Brightii, 235.

Acroculia haliotis, 224.

Acton, Mrs. Stackhouse, sketch by, 64.

Adiantites (Cyclopteris) Hibernica, 283.

^glina binodosa, 48.

------grandis, 51.

------mirabilis, 174.

Africa, Palaeozoic rocks of, 17.

Agassiz, Prof., 252, 258, 259, 298, 304,
343, 486.

Agelacrinites Buchianus, 191.

Agnostus Maccoyii, 51.

------princeps, 43, 45, 51, 203.

------trinodus, 204.

------sp., 51.

Aikin, Mr. A., 65.

Albertite, 256.

Alison, Sir A., sketch by, 149.

Alps, Palaeozoic rocks of the, 369.

Altenstein, 321.

Alum-slates of Norway and Sweden, 62,
346.

Alveolites Labechii, 119.

------(Stenopora) fibrosus, 189.

Ambonychia Triton, 196.

America, gold in, 468; minute Silurian
fossils of, 546; Palaeozoic rocks of,
18, 434; of British North, 434; of
North-western and Arctic, 439; petro¬
leum in North, 443; table of the order
of superposition of the Palaeozoic rocks
of North, 446.

Ampyx nudus, 206.

------prsenuntius, 203.

Anderson, Dr. J., 265, 266.

Anderson, Mr. G-., 264.

Andrews, Prof, 444.

AngeUn, M., 44, 202, 347, 350, 354, 379.

Angelina Sedgwickii, 51, 203.

Anglesea, metamorphosed Cambrian rocks

of, 35.
Annelide-burrows in Cambrian rocks, 28 ;

in the Stiper Stones, 40.
Annelide-tracks from the Lower SUurian

rocks, 201.
Annelide-tubes from the North-western

Highlands of Scotland, 166.
 

Ansted, Prof. D. T., 297, 450.

Anthracosia acuta, 300.

Anticosti, 434 ; Silurian fossils of, 545.

Apiocystites pentremitoides, 222.

Applecross, 172.

Arachnophyllum (Strombodes) typus, 219.

Arbroath flagstones, 251, 265.

Archiac, M. d', 394, 407, 418.

Arctic America, Palaeozoic rocks of, 439.

Arctic regions, Palaeozoic rocks of the, 19.

ArenicoUtes didyma, 28.

Arkose, 347.

Asaphus expansus, 357.

------(Isotelus) gigas, 174.

------(Isotelus) Homfrayii, 203.

------Powisii, 204.

------tyrannus, 51.

Ascoceras Barrandii, 233.

Ash, Mr. J., 46.

Ash, volcanic, 77.

Astacodermata, 542.

Atkinson, Mr. T. W., 368.

Atrypa desquamata, 278.

------Grayii, 226.

------hemisphaerica, 90.

------reticularis, 90.

Atthey, Mr., 302.

Auchenaspis Salteri, 140.

Aushkul, Southern Ural, Lake of, 454.

Austin, Major, 222.

Australia, gold in, 460; Palaeozoic rocks
of, 18.

AveUne, Mr., 31, 89, 102, 103; see also
Geological Survey of Great Britain,
passim.

Avicula Danbyi, 228.

Avon, valley of the, 497.

Aymestry Limestone, 128.

Ayrshire, coal-field of, 292; Old Eed Sand¬
stone of, 250; Permian rocks of, 332;
Silurian rocks of, 155.

Baggy Point, 272, 279.

Bailey, Prof, 438, 439.

Baily, Mr. W. H., 29.

Bain, Mr., 17.

Bala formation in Wales, 70; supporting

conformably the Tarannon shales and

Denbighshire grits, 102.
Ballochmyle, Ayrshire, 332.
Banffshire, Old Eed Sandstone of, 262
Banks, Mr. E., 138, 139, 238, 240.
Barkly, Sir H., 464.