INDEX OF SUBJECTS 



345 



Heart, in different animals, 86 

 Helcion, 228 



Helicidce (Snails, etc.), Cout- 

 agne on, 129 



Sicilian, 64 

 Helix acuta, 133, 134 



alpina, 1 29 



hortensis, 1 34 



lapicida, 1 29 



nemoralis, 1 34 



striata, 132 



ventricosa, 133, 134 

 Hemicyon, 105 

 Heterocerata, 215 

 Hetero dicer as, 196 

 Hipparion, 72, 104, 313 



Gaudry on its paw, 91 

 Hippopotamus, 316 

 Hippuritse, 159, 165, 216 

 Holcodisci, 286 

 Holcostephani, 286 

 Holothuvice, 49 



Hoplites (Ammonites), 21, 159, 



194, 286 



Horns (of Mammals), 212 

 Horse, ancestry (Anchitherium, 



Hipparion, Palceotherium), 



72, 104, 218, 313 



Cuvier on, 13 



its evolution ' ' a delusion ,"105 



loss of digits of its Tertiary 

 ancestors, 237 



Marsh on, 73 



migration to South, 283 

 Human stage of Haeckel, 57 

 Hycsnodon, 317 

 Hydrochcerus, 316 

 Hydrosaurus, Cretacean lizard, 



171 



Hylonomus, 294 

 Hycenarctos, 105, 151 

 Hyomandibular bone (of fishes) 



87 



Hyperodapedon, 297 

 Hypsiprymnus (kangaroo rat), 



173 



Hyracoidae, 314 

 Hyracotherium, 1 54 

 Hyrax, 243 



IBERGICERATA, 260 



Iberus, 126, 137, 271 



Ichthyosaurus, gigantic Secon- 

 dary reptile, 9, 51, 95, 170 



Ichthyotomi (Dog-fishes), 86 



Iguanodon, discovered by Man- 

 tell, 9, 224, 299 



Infusoria, 45 



Inoceramice the, 67 



Insectivora, Haeckel on, 54 



Insects, Carboniferous, 94 



Haeckel on, 49 



Lamarck on origin of, 30, 32 

 Intestinal worms, jo 

 Invertebrates, persistent em- 

 bryonic types, 256 



Pre-Cambrian, Lebesconte, 

 and Cayeux, discoveries of, 



329 



Pre-Cambrian of North 

 America, 331 



Silurian, Murchison on, 319 

 Isodonts, 263 



JAVA, rhinoceros of, dis- 

 covered, 8 



KANGAROOS, Cuvier on, 13 



probable ancestry, 173 



rats, 304 



resemblance between limbs 

 of, and those of the Iguano- 

 don, example of superficial 

 convergence, 224 



Keraterpeton, 294 



LABYRINTHODON, 57, 198 



Lcelaps, 301 



Lagena (Foraminifer) extends 



from Silurian to present 



day, 163 

 Lagomorphs, 312 

 Lamarckism, 27, 267 

 Lamellibranchs, early origin of, 



48 



fixation of free larva of 

 certain species, 218 



Jackson on primitive form 

 of hinges of, 262 



