﻿INDEX. 
  

  

  823 
  

  

  Page. 
  

  

  Mermis 
  acuminata 
  068 
  

  

  Mermis, 
  American 
  species 
  of 
  G68 
  

  

  Mermis 
  crassicaudata 
  668 
  

  

  Mermis 
  elocgata 
  668 
  

  

  Meromyga 
  americana 
  709 
  

  

  Mesa\erde 
  253-263 
  

  

  Mesochorus 
  vitreus 
  705 
  

  

  Mesozoic 
  formations 
  80-92 
  

  

  Metamorphics 
  110-11 
  3, 
  164-176 
  

  

  Meteorological 
  data 
  for 
  report 
  on 
  

  

  the 
  Eocky 
  Mountain 
  locust 
  677-683 
  

  

  Microgaster 
  78(.i-7&2 
  

  

  Microgaster 
  militaris 
  705 
  

  

  Middle 
  and 
  North 
  Parks, 
  dividing 
  

  

  range 
  between 
  381-383 
  

  

  Middle 
  and 
  South 
  Parks, 
  Colorado, 
  

   Gnstavus 
  K. 
  Bechler's 
  geograph- 
  

   ical 
  rcDort 
  on 
  371-440 
  

  

  Middle 
  Blue 
  River 
  Valley 
  401 
  

  

  Middle 
  Cretaceous 
  formations. 
  .91,253-259 
  

   MiddleFork 
  of 
  South 
  Platte 
  River. 
  419-422 
  

  

  Middle 
  Park 
  canoes 
  389 
  

  

  Middle 
  Park 
  district, 
  geographical 
  

   positions 
  and 
  elevations 
  of 
  points 
  

  

  in 
  408 
  

  

  Middle 
  Park, 
  drainage 
  and 
  charac- 
  

   teristics 
  of 
  391-398 
  

  

  Middle 
  Park, 
  hydrographic 
  table 
  for 
  409 
  

   Middle 
  Park, 
  mountain 
  groups 
  of.. 
  386 
  

  

  Migration 
  of 
  the 
  locust, 
  return 
  644 
  

  

  Migrations 
  of 
  the 
  locust, 
  history 
  of. 
  641 
  

   Migrations 
  of 
  the 
  Rocky 
  Mountain 
  

  

  locust 
  of 
  the 
  West 
  641-648 
  

  

  Migratory 
  locusts 
  of 
  Central 
  and 
  

  

  South 
  America 
  648-650 
  

  

  Migratory 
  locust, 
  western 
  591 
  

  

  Millepede, 
  flattened 
  759 
  

  

  Mintral 
  deposits 
  138 
  

  

  Minerals 
  of 
  Colorado, 
  catalogue 
  of. 
  226-235 
  

   Minera 
  s 
  of 
  Grand 
  River 
  District, 
  

  

  catalogue 
  of 
  100 
  

  

  Mines 
  of 
  Sawatch 
  Range 
  172 
  

  

  Mines 
  of 
  Trinidad 
  region 
  215 
  

  

  Minnesota, 
  the 
  locust 
  in 
  1876 
  in. 
  . 
  .617-621 
  

  

  Mite, 
  little 
  red 
  660 
  

  

  Mite, 
  scarlet 
  silky 
  660 
  

  

  Molobrus 
  734 
  

  

  Molluscse 
  291 
  

  

  Montana, 
  the 
  locust 
  in 
  1876 
  in 
  623-625 
  

  

  Mont': 
  zuma 
  Creek 
  400 
  

  

  "Monuments" 
  of 
  Sawatch 
  Range. 
  156-158 
  

  

  Moos 
  505 
  

  

  Moostoosh 
  456 
  

  

  Mordellidfe 
  , 
  814 
  

  

  Mortoniceras 
  290 
  

  

  Mountain 
  groups 
  of 
  Middle 
  Park.. 
  386 
  

  

  Mountain 
  ranges, 
  orders 
  of 
  388 
  

  

  Muddy 
  River 
  and 
  its 
  valley 
  397 
  

  

  Mudge, 
  B. 
  F., 
  geological 
  report 
  of 
  . 
  277-294 
  

  

  Mnrgautia 
  histrionica 
  755 
  

  

  Musca 
  etabulans 
  735 
  

  

  Mya 
  arenaria 
  487 
  

  

  Myacites 
  87 
  

  

  Myalina 
  ampla 
  72 
  

  

  Myer, 
  A. 
  J., 
  Chief 
  Signal-Officer, 
  me- 
  

   tcoiological 
  data 
  for 
  report 
  on 
  the 
  

  

  Rocky 
  Mountain 
  locust 
  677-683 
  

  

  Myophoria 
  87 
  

  

  Myophoria 
  ambilineata 
  87 
  

  

  Mytilus 
  edulis 
  486 
  

  

  Page. 
  

  

  Native 
  cabbage-butterfly 
  750 
  

  

  Native 
  currant 
  saw-fly 
  790 
  

  

  Nebraska, 
  the 
  locust 
  "in 
  1876 
  in.. 
  610, 
  613 
  

  

  Negundoides 
  292 
  

  

  NematoidesB 
  666 
  

  

  Nematus 
  ventricorus 
  787 
  

  

  Neonympha 
  720 
  

  

  Neritiua 
  phaseolaris 
  87 
  

  

  Neritina 
  powelli 
  87 
  

  

  Nevada, 
  the 
  Rocky 
  Mountain 
  lo- 
  

   cust 
  in 
  604,605 
  

  

  New 
  Mexico, 
  the 
  locust 
  in 
  604 
  

  

  Niobrara 
  281-289 
  

  

  Nitidulidaj 
  812 
  

  

  Noctua 
  clandestina 
  717 
  

  

  Noctua 
  unipuncta 
  G99 
  

  

  North 
  and 
  Middle 
  Parks, 
  dividing 
  

  

  range 
  between 
  381-383 
  

  

  Northern 
  army- 
  worm 
  699-708 
  

  

  Northern 
  rang« 
  of 
  the 
  locust 
  605-609 
  

  

  North 
  Fork 
  of 
  South 
  Platte 
  River. 
  . 
  429 
  

  

  Nucnla 
  487 
  

  

  Nuphar 
  advena 
  806 
  

  

  Nyctosaurus 
  gracilis 
  287 
  

  

  Odontolcaj 
  , 
  288 
  

  

  Odontornithes 
  288 
  

  

  Odontotormse 
  288 
  

  

  (Edipoda 
  atrox 
  689 
  

  

  CEdipoda 
  Carolina 
  594, 
  625, 
  685 
  

  

  (Edipoda 
  pellucida 
  637, 
  689 
  

  

  CEdipoda 
  sordida 
  625,684,685 
  

  

  (Edi 
  poda 
  tatraica. 
  651 
  

  

  OEdipoda 
  vastator 
  653 
  

  

  Ohio 
  Valley, 
  on 
  the 
  age 
  of 
  the 
  bi- 
  

   son 
  in 
  458-461 
  

  

  Old 
  World, 
  the 
  locusts 
  of 
  the 
  650-658 
  

  

  Oncid 
  -res 
  cingulatus 
  805 
  

  

  Onion-fly 
  740 
  

  

  Onion-thrips 
  =,= 
  742 
  

  

  Ophion 
  purgatus 
  704 
  

  

  Orchelimum 
  gracile 
  667 
  

  

  Orchestris 
  albionica 
  757 
  

  

  Orchestris 
  striolata 
  744 
  

  

  Orignac 
  480 
  

  

  Orignaus 
  480 
  

  

  Ornithochirus 
  harpia 
  287 
  

  

  Ornithochirus 
  umbrosus 
  287 
  

  

  Orographic 
  features 
  of 
  San 
  Juan 
  Dis- 
  

   trict 
  241-244 
  

  

  Oromis 
  sesopi 
  949 
  

  

  Ortalis 
  flexa 
  742 
  

  

  Orthisinaumbraculum 
  72 
  

  

  Otiorhynchus 
  picipes 
  757 
  

  

  Oscinis 
  granarius 
  708 
  

  

  Oscinis 
  tibialis 
  709 
  

  

  Oscinis 
  vastator 
  708 
  

  

  Ostrea 
  congesta 
  284 
  

  

  Ostrea 
  procumbens 
  87 
  

  

  Ostrea 
  prudentia 
  90 
  

  

  Ostrea 
  strigilecula 
  87 
  

  

  Ouray, 
  Colorado, 
  sketch 
  of 
  Salt 
  

   Lake 
  wagon-road 
  from 
  Salina, 
  

  

  Utah, 
  to 
  347-350 
  

  

  Ovibos 
  moschatus 
  447 
  

  

  Packard, 
  jr., 
  A. 
  S., 
  list 
  of 
  Coleop- 
  

   tera 
  collected 
  in 
  1875, 
  in 
  Colorado 
  

   and 
  Utah, 
  by 
  811-815 
  

  

  