INDEX. 



261 



Knapp, H. S., Rear Admiral, extract from 

 letter of Director of U. S. Geological 



Survey to, concerning survey 11 



Rear Admiral, inquiry by, as to cost of 



survey 11 



La Barca, Miocene or older rocks and fossils 



found near 154, 174-175 



strata, structure, and fossils noted at 



and near 176-177 



La Cerrita, contact of trap and limestone 



noted at - 212 



La Cruz, basal rocks exposed near 53 



position of 36 



view in Cordillera Central near (PI. 



XVI, B) 188 



La Granja, features of 27 



view of (PI. II, B) 28 



See also El Morro de Monte Cristi. 



La Guia, rocks near 213 



La Loma, trail from 35-36 



La Madre Vieja, conglomerate boulders near 206 

 La Mata, view of Siete Picos from (PI. VI, 



B) 36 



La Partilla salt workings, description of 216 



La Perse verancia nickel deposit, conclusions 



concerning 235-236 



geography and geology of 232 



location and history of concessions 



covering - 231 , 243 



mining operations on 233 



mode of occurrence of nickel in 233 



report on 231-236 



samples from, results of assays of 234-235 



La Plata, Miocene fossils found near 154, 174 



La Rama copper prospect, features of 240 



work on 238 



La Rama gold prospect, problematic value 



of 241-242 



La Romana, geographic features near 48 



La Subida de la Salina, Miocene or older 



fossils found at 154, 174 



La Trinchera, limestone near 209 



Oligocene rocks and fossils collected 



near 63,111-112 



La Vega, basal rocks exposed near 51 



Eocene rocks near 59 



La Vega Province, Cevicos limestone in 63-64 



copper and iron deposits in.._ 228-231 



metamorphic sedimentary rocks from.. 83 



mineral deposits in, near Hatillo and 



Maim6n „ _ 228-231 



Oligocene fossils found in 107, 108, 110, 111 



La Vigia, age of rocks at 223 



Laguna de la Marias, features of 192 



Lake Enriquillo, animals in and near 192 



basin of, springs in 195 



basin of, villages in 195 



date of depression forming 82 



features of 187-188,190-191 



fossils found at 166-168 



geology of region near 213-221 



petroleum indications near 219 



Quaternary coral reef at 77 



roads and trails along shores of 196, 197 , 



Lake Enriquillo — Continued. 



springs near, features of 193 



structure at 213-214 



vegetation near 197 



view of reef corals near (PI. XVII, B).... 198 



water of, analysis 191 



See also Enriquillo Basin. 



Lake Limon, location of 192 



Lake Rincon, features of 192 



Lakes, Barahona Province, features of 190-192 



Laguna del Fondo, features of 39 



Lamprophyre, description of 86 



Lead ore, occurrence of 243 



Ledoux& Co., assays made by 240, 241 



Las Baitoas, view of reef corals near (PI. 



XVII, B) 198 



Las Calderas Bay, reference to 48 



Las Canitas, altitude of 35 



basal complex near 183 



geography and geology of region near 205 



location of 205 



quartz vein containing copper near 205 



view from, description of 205 



Las Caobas, Miocene fossils found near.... 132-145 



Oligocene rocks near 63 



Las Charcas, conglomerate exposed at 212 



Miocene fossils found near 130, 133-145 



Las Cuevas, Oligocene rocks and fossils 



found at and near 109, 200 



Las Guacaras, Eocene rocks at caves of 59 



Las Lagunas, Oligocene rocks and fossils 



found near 63, 107 



Las Lajas, Eocene rocks at and near 58 



fossils found at 105 



Las Lavas Creek, Oligocene fossils found 



on 107,111 



Las Layas Creek, Oligocene rocks on 63 



Las Matas de Farfan, geology of area near 210-211 



Las Matas formation named from 76 



location of 195 



sulphur springs near 192 



Tertiary sedimentary rocks near.. 199, 201, 211 



view of (PI. XVI, A) 188 



volcanic rocks near 203 



Las Matas formation, age of _ 57, 210 



character, thickness and distribution of 76 

 199, 201, 207, 208, 209-211, 213, 214 



equivalents of 222 



flexures in 79 



Las Minas, basal rocks at 52 



Las Salinas, fossils found near 163-164 



rainfall at 197 



roads to 196 



salt deposits near 214 



salt mines worked by inhabitants of 215 



stratigraphic section near 214—215 



Las Yayas, rocks at and near 199, 212, 213 



Lavas, descriptions of 86-87 



Law, L. M., tests of oil by 224-225 



Lead, deposits of 243 



Lignite, deposits of 244 



Lignum-vitae tree, view showing (PI. XVII, A) 198 



Limburgite, description of 87 



Lime, limestones suitable for making 249 



