INDEX. 



Page. 



Helaletes, nanus 98 



sp 98 



Helaletinae 41,54 



Helohippus 102 



Helohyus 103 



etsagicus 95 



lentus 98 



plicodon 98 



valid us 98 



sp 98 



Helotheriimi 102 



Helvetien etage, homotaxis and fauna of 7(5-78 



Hemiacodon 100 



gracilis 95 



pygmaeus 95 



Hemipsalodon grandis 103,110 



Heinithlseus 102 



kowalevskianus 92 



Heptodon 38,41,46,102 



calciculus 94 



posticus 94 



singularis 94 



ventorum 94 



sp 99 



Herbivora 86 



Hesperomys 118 



loxodon 116 



Hesperhys 119 



vagrans 115 



Heteromeryx Ill 



dispar 104 



transversus 104 



Heteromyidae 57,119 



sp 112 



Hills, R. C, papers by. 11 



Hipparion 79,83 



Hippotheriinaj 78 



Holarctica, invasion from 35-36 



Hollick, Arthur, on Mascall flora 78 



Homacodon 98,103 



vagans 98 



sp 98 



Homacodontidae 57,98 



Homo 88,89,90 



Homogalax. See Systemodon. 



Hoplophoncus 110 



cerebralis 107 



davisi 107 



insolens 107 



occidentalis 105 



oreodontis 105 



primsevus •. 105 



sp 105 



Horizons, phases of, homotaxis and fauna;. . . 33-90 



time correlation of 29-32 



Horsetail Creek, Colo., fatma of 103-104 



Huerfano formation, fauna of 48-50,95-98 



homotaxis of 48-50 



figure showing 23 



Huerfano Park, Colo., deposits of 48 



fauna of 92-95 



section of, figure showing 23 



Hysenidse 64 



Hyaenodon 59,103,110 



crucians 105 



cruentus 105 



127 



Page. 



Hyaenodon horridus 105 



leptocephalus 105 



montanus 105 



mustelinus 105 



paucidens 105 



Hysenodontidse 40,45,46,52,54, 



57,60,61,62,63,66,93,96,101,103, 105, 110 



Hyohippus 78,82 



Hyomeryx 103 



breviceps loO 



Hyopotamus 59,61,62,64,111 



americanus io4 



brachyrhinchus 109 



rostratus 106 



Hyopsodontidaj 46, 52, 59, 92, 93, 96, 99, 101 



Hyopsodus 38, 40, 44, 45, 47, 101 



browni 93 



gracilis 99 



jacksoni 93 



laticuneus 93 



lemoinianus 93 



marshi 96 



minor 93 



minusculus 96 



miticulus 93 



paulus 96 



powellianus 93 



simplex 93 



uintensis 99 



wortmani 93 



sp 49,93,96 



Hypertragulidse . . 57, 61, C3, 64,68, 74, 



75, 77, 100, 103, 104, 106, 109, 111, 114, 120 



Hypertragulus 70, 75, 111, 120 



calcaratus 106,114 



hesperius 109 



ordinatus 114 



planiceps 109 



sp 109 



Hypisodus 74,111 



minimus 106 



Hypohippus 80,81,119 



affinis 117 



equinus 115 



osborni 115 



sp 115,117 



Hyrachyus 49,102 



agrarius 97 



bairdianus 97 



crassidens 97 



eximius 97 



imperialis 97 



intermedins 97 



paradoxus 97 



princeps 97 



priscus 99 



sp 97 



Hyracodon Ill 



arcidens 105 



major 105 



nebrascensis 105 



planiceps 105 



priscidens 104 



sp 108 



HyracodontidfB 52, 



54, 57, 61, 63, 99, 102, 104, 105, 108, 111 



