266 



INDEX. 



Rio Yaque del Sur — Continued. 



sulphur springs on 192 



Tertiary rocks along 206-209 



tributaries of 189 



view of sandy shale and sandstone ex- 

 posed on (PI. XVIII, A) 208 



view of valley of (PI. XVIII, B) 208 



Rio Yasica, course of 43 



Rio Yuma, mouth of 47 



Rio Yuna, basal rocks exposed near 51 



course of 41 



delta of 47 



Eocene rocks near 59 



iron and copper ores on and near 228-231 



position of 32 



Riviere Artibonite, course of 36, 42 



Road metal, rock available for 246 



rock available for, tests of 247-248 



Roads and trails, courses and character of.... 44 



196-197 



Rock for concrete, deposits of 245-246 



Rodents, extinct, notes on 104 



Rope-fiber factory near Monte Cristi, Oligo- 



cene rocks near 172 



Pleistocene beach deposits near 175 



Ross, C. P., chapter on geology and water 

 resources of Monte Cristi and vicinity 



by 169-180 



chapter on geology of Samana Province 



by 181-185 



fossils collected by 106, 



109, 110, 111, 153- 



162, 165, 166-168 



fossil-bearing limestone collected by.... 60 



Miocene formations discriminated by 65 



itinerary of „ 12-13 



Oligocene (?) limestone noted by 64 



report on mineral deposits near 



Hatillo and Maimon by 228-231 



report on San Cristobal mining district 



by 236 



samples of water collected by 191 



193-194, 249-255 

 Ross, C. P., and Condit, D. D., Cerros de 



Sal formation named by 75 



chapter on economic geology by 228-254 



chapter on geology of provinces of 



Barahona and Azua by 186-227 



Las Matas formation named by 76 



Miocene beds discriminated by 65-66 



Routes of travel 44, 196-197 



Sabana Cafiongo, Oligocene limestone on 172 



Sabana de la Mar, basal complex near 183 



Tertiary limestone near 64, 184 



Sabana de P6rez, fossils found near 105 



Sabana de San Tom6, geology of region near.. 211 



Sabana Grande, basal rocks exposed near 51 



Sabana Liana, view of (PI. IV, A) 32 



Sabaneta, basal rocks exposed near 52 



fossils found near 55 



Oligocene tuffs near 172 



trail from, to San Juan 35-37 



volcanic rocks near 55-56 



St. Marc, Eocene rocks near 58 



Salines, Azua and Barahona provinces, sum- 

 mary concerning 227 



Salt, deposits of 244, 245 



Samana, conglomerate near 184 



Samana Bay, coral limestone on 185 



deposits on _ 182-185 



depression forming, date of 82 



description of 46-47 



limestone from shores of, tests of, as 



road metal 248 



Oligocene limestone on 64 



plant-bearing beds on 76, 103,184 



recent deposits along 185 



topography of south shore of 182 



Samana Peninsula, basal rocks of..„ 53, 182-183 



climate of 29 



drainage of.._ 43 



elevations on 28 



features of 28-29 



lignite streaks on 244 



limestone from, tests of, as road metal 247, 248 



limestone conglomerate on 183 



Pleistocene or Recent terraces and coral 



reefs on 184-185 



rock suitable for making concrete found 



on™ 246 



surface waters of, analyses of 252-254 



topography of..„ 181-182 



Samana Province, basal complex in 53, 182-183 



geology of 181-185 



limestone from, test of , as road metal, 247, 248 

 Miocene or Pliocene rocks and fossils 



found in _ 165, 184 



Oligocene fossils collected in Ill 



Pleistocene or Recent terraces and coral 



reefs in 184-185 



recent deposits in 185 



Tertiary clay, sand, and conglomerate in 184 



Tertiary fossils found in 183, 184, 185 



Tertiary limestone and limestone con- 

 glomerate in 183-184 



topography of 181-182 



Samba Hills, Mao Adentro limestone at 73 



Sample, C. C, cited on explorations for 



amber 244 



Sanchez, fossils found near 165, 184 



fossil plants collected at 103 



lignitic streaks near 244 



location of 47 



marble at 53 



plant-bearing beds at 76, 184 



terraces and coral reefs near 184-185 



Tertiary clay beds at and near 184 



Tertiary limestone near 183 



view of (PI. Ill, C) 30 



Sanchez, Le6n, aid by 231 



San Crist6bal, gold prospect near 242 



Oligocene rocks and fossils found near.. 64, 112 

 San Cristobal Mining Co., San Francisco 



mining concession obtained by 237 



operations of 237 



San Crist6bal mining district, conclusions 



concerning 241-242 



copper deposits in 243 



