INDEX 
483 
Arctic regions, 19 ; mild climate 
during Glacial Epoch, 46; Forami- 
nifera in glacial clays, 47; water as 
agent in formation of glacial de¬ 
posits, 77 ; past climate of Siberia, 
81 ; range of mammoth, 86 
Hoy, on Mysis relicta in Lake 
Michigan, 48 
Huanaco, distribution of, 406 
Hudson, on pampas of Argentina, 396, 
397 
Hudson Bay region, 31—36 ; invaded 
by waters of Arctic Ocean, 47 
Hull, pre-Glacial elevation of land, 
14 
Humboldt Current, striking Galapagos 
islands, 294, 300 ; did not exist 
during Tertiary Era, 334, 335 
Humming-birds, range of, 250, 367, 
368 
Hutia in Antilles, 282 
Hutton, on Pacific land-connections, 
322, 420, 426 
Huxley, on cray-fish, 218 
Hyalinia, radiatula, 72; nitidula, 72; 
cellaria, 389 ; alliaria, 389 
Hyalinia (see Vitrea'). 
Hyla gratiosa, 173 
Hymenochirus, 377 
Hymenoptera, wingless of Australia 
and South America, 433 
Hyracotherium, 147 
Hystricidae, 71 
Hystricomorpha, 371—373 ; in Santa 
Cruz beds, 399, 402 
I 
Iguanavus, 127 
Iguanidae, 126, 202, 207, 304, 305 
Ihering, v., affinities of Plilaocyon, 
151, 152 ; origin of Procyonidae y 
152 ; dispersal of mollusks, 161 ; 
on Mutelidae, 161 ; range of 
Helicidae, 205,206, 212; distribution 
of Unionidae, 254; Archhelenis, 274; 
on origin of Galapagos islands, 
313 ; Pacific Continent, 322 ; fossil 
marine mollusks of South America, 
334 ; researches in South America, 
337 ; freshwater mussels of Brazil 
and Africa, 338 ; palaeogeography 
of South America, 339, 340 ; dis¬ 
tribution of Clausilia, 349 ; origin 
of South American bear, 351 ; South 
America in Eocene Period, 362 ; 
land-connection between Africa and 
America, 380 ; flora of South 
America, 383 ; Fernando de 
Noronha, 385 ; flora of St. Helena, 
392 ; dispersal of wolves, 396 ; dis¬ 
tribution of freshwater mussels in 
South America, 405 ; on age of 
Santa Cruz beds, 398 ; relationship 
of west American and European 
shells, 411 ; faunistic affinities of 
Chile and New Zealand, 420, 421 ; 
dispersal of marine mollusks, 428, 
429 ; affinities of Falkland island 
wolf, 430 
Insectivora, of eastern States, 141, 
142 ; of Bridger deposits, 143 ; of 
south-western States, 201 ; of Santa 
Cruz, 399 
Insects from Antarctic regions, 433, 
434 
lonolaema, 350 
Ischyromidae, 228 
Isectoloplius, 353 
Isometrus maculatus, 389 
J 
Jacobi, connection between Australia 
and South America, 421 
Japyx, 411 ; solifugus, 411 ; subter- 
raneus, 412 ; saussurei, 412 
Johansen, subsidence of land tested 
by marine shells, 17 
Johnson, distribution of Helix hor- 
tensis, 14 
Joly, on permanence of ocean basins, 
275, 276 
Jones, submarine deposits in Ber¬ 
muda, 184 
Jordan and Evermann, origin of 
North American blind fishes, 165 
Jordan, Central American fishes, 240 
Juan Fernandez island, 418 
ii 2 
