INDEX. 
A A river (Livonia), Devonian fishes from the bank of, 52. 
Abbott, Capt. J., his journey from Khivah, 310. 
Abich, Professor, on green-grained limestone, 28*. 
Abo and Aland, striae on the rocks in the neighbourhood of, 531. 
Actinolepi s tuberculatui (Ag.), Devonian ichthyolitc of Russia 
and Scotland, 33. 
Adacna edentula and A.protracla, fossils of the Caspian, 306 
et sci/. 
Aerolites, supposed, at Ustiug-veliki, are erratic blocks, 520. 
Africa, Silurian rocks of, 6* ; .1 urassie rocks of, 257. 
Agassi/., Prof., his account of the fossil fishes of the Devonian 
sy stem in Russia, 33, 39*, 65. (See Description of vol. ii.) 
■ * ■, his notice of the fossil fishes of the Kupfer 
Scliiefer, 215. 
■ , his theory of drift as moved by glaciers, 508. 
Age of the coal in the Donetz field, 122. 
. — rocks of the Ural chain, 464. 
Ai river (South Ural), encrinital limestone on the banks of the, 
432. 
Aikin, Mr. A., his memoir on Cader Idris, 392; his explanation 
of the occurrence of copper ore in a turf bog, 169. 
Ainsworth, Mr. W., his descriptions south of the black Sea, 
647, 656. 
Ak Btirun (Crimsea), fossiliferous marine beds found at, 303. 
Akri-tau (S. Ural), grey psammites of the, 460. 
, relations of the Carboniferous rocks on the 
flanks of the, 130. 
Alabaster (Permian) and gypsum near Sterlitaraak, 150. 
on the lk, 156 ; at Barnukova, 167. 
— , on the Piuega and Dwina rivers, 172, 173. 
Ala-tau (South Ural), conglomerates of the, 460. 
Aland and Abo, stria- on the rocks near, 531. 
Alatyr, western limit of the Jurassic basin of Lower Volga, 244. 
Alcyonia, steins of, found in the sands near Saratof, 275. 
Alexander, LI. I. II. the Grand Duke, his ascent of the Ural peaks. 
(See lithographic frontispiece of Part I. and pp. 434, 653.) 
Alexanrlrofsk (coal-field of the Donetz), crystalline rocks be- 
tween that place and Paulograd, 91. 
• , coal at, 96. 
. , Zavod of, in the Ural mountains, 389. 
Alexina (Tula), carbonaceous layers with sand and shale, 78. 
, fossils in the carboniferous limestones of, 79. 
Alina (Ural), Devonian rocks at, 432. 
Alkovaia (Donetz), carboniferous sections north of, 108. 
Alleghany or Appalachian chain, Silurian rocks of, 4*. 
Alluvia. See also Auriferous alluvia, and Detritus. 
Alluvia (cold), nature of on the Ural mountains, 476. 
V 1, limits of, 479; of Neviansk, 368. 
., of Cossatchi-dalchi, 439, 491. 
, of the environs of Ekaterinburg, 476. 
, of Chrestovodsvisgensk near Bissersk, 390, 480. 
, of Pcshanka, 482 ; of Soitnanofsk, 487. 
, of Miask anil the Lake Aushkul, 488. 
— , hypothesis concerning the origin of, 492. 
Alluvial detritus on the flanks of the Ural, 412, 471 et seq. 
Alluvium in Russia in Europe, condition of, 501. 
Alterations of level, instances of in Russia on a grand scale, 584, 
Altered rocks, near Lake Onega, 23 ; in the Ural, 357 et seq. 
Alternation of schists with porphyries in the Irendyk (South 
Ural), 453. 
Alum-shale of Norway, 12. 
Alum-slate near the Falls of Trollhcetten in Norway, 15. 
America, North, Silurian rocks of, 4*. 
■ , South, Silurian rocks of, 6. 
Amherst, Lady Sarah, Indian Jurassic fossils collected by, 256. 
Ammonite beds on the Volga, 230 ; on the Oka, 234 ; on the 
Moskwa, 236. 
Ammonites of the Oilmen like those of the Lower Alps near 
Digues, 249. 
Ammonites biplex, a fossil common to the English and Russian 
Oolites, 253. 
Hogdoanus, its resemblance to Ceralites, 196. 
eordafm, presence of, in the Jurassic shales at Saka- 
lofskie on the Volga, 246. 
interruptus and triplex', two species found in India 
and in the Oxford clay of England, 257 
vir gains, a prevailing Jurassic fossil in the Moscow 
basin, 236. 
Analogies between the Silurian rocks of Russia and England, 5, 
36*. 
■ (Devonian), 42 et seq., 60, 63, 384 ; (Carboniferous), 
113, 122, 125, 135, 363, 386,440. 
Analogy of the Permian fossils of Russia with those of Western 
Europe, 213 ; analysis of, 215. 
Analysis of the Tehornozem, or black earth of Russia, 559. 
Andoma, near Vitegra, sections on the, of Devonian and carbo- 
niferous rocks, 48, 74 ; absence of drift on the, 516. 
river, ichthyolites near the mouth of, 48. 
Angular blocks, elevated ridges of, near river banks and former 
lakes, explained by breaking up of ice, 566, 568. 
Anosoff, General, his important services to the Imperial Govern- 
ment at Zlataust and great kindness to the authors, 347, 
427, 488. See also description of lithograph facing p. 437. 
Anthracite, vicinity of, to crystalline rocks, 100. 
, important beds of, at Popofskoe, in the Donetz 
coal-field, 101. 
, excellence of, in the Donetz coal-field, 102. 
Anthracitic and bituminous coal-fields of the south of Russia, 
division of the carboniferous series into, 100. 
Anticlinal axis in the carboniferous rocks of the Donetz, 103. 
of carboniferous limestone near Sterlitamak, 131. 
in the valley of the Saltmarka, 148. 
at Tchismas, on the Tchussovava, 387. 
Antipofka (Lower Volga), tertiary sands and marlstones of, 277. 
-, tertiary beds of the Eocene period at, 288. 
Antipofka grits, their resemblance to the Bognor rocks, 289. 
Asar or Osar, ridges of drift of Sweden, described, 542. 
Appalachian chain, analogy of the elevation of the Ural with 
that of these mountains, 462. 
Aqueous transport of the Scandinavian drift, 546. 
Aral sea, ancient limits of Aralo-Caspiau beyond the, 297. 
, its relative level compared with thatof tlieCaspian,322. 
, west shores of, according to M. Basinier, 325, 652. 
, true level of, not obtained by barometrical observa- 
tions, 326. 
, corrections in the map of the, 327. 
— , modifications of the author’s views concerning its 
ancient extent, 8*. 
Aralo-Caspian region, north-western limits of, 325. 
Aralo-Caspian deposits, meaning of the term, 284. 
4 R 
