493 



Myrica cretacea 392 



Lessigiana 386 



Ludwigii... 385 



Saportaua 385 



Nabidte 325 



Narvesus carolioensis 332 



Naso Robertsouii 352 



NaucoridfB , 337 



Naucoris Poeyi 337 



Neajthus vitripeunis 356 



Neottiglossa undata 284 



Nepida) 338 



New species of Cretaceous fossil plants from the Dakota group, by Leo Lesque- 



reux 391 



New species of fossil plants from the Lignitic formations, by Leo Lesquereux. .. 363 



Tertiary fossil plants described 382 



Northern Caracara 457 



Note on some fossils from near the eastern base of the Rocky Mountains, with 



descriptions of a few new species, by F. B. Meek 39 



the Geology of some localities near Caiion City, Fremont County, Colo., 



by S. G.Williams 249 



Lignitic grouj) of Eastern Colorado and portions of Wyoming, byF. V. 



Hayden 401 



Notes on some peculiar forms of erosion in Eastern Colorado, with heliotype illus- 

 trations, by F. V. Hayden 210 



the surface-features of the Colorado or Front range of the Rocky 



Mountains, by F. V. Hayden 215 



useful for the location of miners' monuments in Baker's Park 209 



Notice of a very large Goniatite from Eastern Kansas, by F. B. Meek 445 



Notonecta insulata 339 



NotonectidiB 339 



Nysiina 304 



Nysius angustatus 304 



californicus 304 



groelnandicus 304 



Oak Creek 251 



(Ebalus pugnax 285 



Occurrence of lodes 157 



Ochrostomus lineola 303 



pyrrhopterus ^ 303 



Oddancala crassimana 307 



Cubana 307 



dorsalis 306 



Oil Creek 249 



Springs 250 



Oocopeltus gattas 302 



■varicolor 303 



Orectoderus (new genus) 319 



obliquus 320 



Orgerius rhyparus 352 



Orsillus scolopax 305 



Orthoptera, fossil, from Rocky Mountain Tertiaries 447 



Oso, Mount 166 



Ouray lode - 162 



Outlines of a natural arrangement of the Falconidse, by Robert Ridgway 225 



Oxycarenina — 307 



Ozophora jiicturata 310 



Pachycoridse 272 



Pachycoris Fabricii. 273 



Pachygronthiua 307 



Pachylis gigas 295 



Pagasa pa)li]Des 325 



Palseothrips - 222 



fossilis 222 



Palraa'Mtes Goldianus 385 



Pamera basalis 310 



bilobata 310 



curvipes 310 



longula 310 



