﻿VI 
  LIST 
  OF 
  ILLUSTKATIONS. 
  

  

  Eeport 
  of 
  F. 
  B. 
  Ehoda. 
  

  

  Facing 
  page— 
  

  

  Plate 
  L. 
  Example 
  of 
  erosion 
  312 
  

  

  Eeport 
  of 
  H. 
  Gannett. 
  

  

  Plate 
  LI. 
  Fords 
  of 
  Gunnison 
  and 
  Grand 
  Eivers 
  350 
  

  

  LII. 
  Fords 
  of 
  Green 
  Eiver 
  350 
  

  

  Eeport 
  of 
  G. 
  B. 
  Chittenden. 
  

  

  Plate 
  LIII. 
  Section 
  through 
  Mesa 
  Verde 
  and 
  Cheyenne 
  Mountains 
  360 
  

  

  LIV. 
  The 
  Needles. 
  , 
  364 
  

  

  LV. 
  Diagrams 
  366 
  

  

  LVL 
  The 
  Gradienter 
  , 
  366 
  

  

  Eeport 
  of 
  G. 
  E. 
  Bechler. 
  

  

  Plate 
  LVII. 
  Panorama 
  of 
  Gore's 
  Eange 
  378 
  

  

  LVIIL 
  Profile 
  for 
  Map 
  1 
  408 
  

  

  LIX. 
  Panorama 
  of 
  Bison 
  Peak 
  and 
  Tarryall 
  Eange 
  412 
  

  

  LX. 
  Profile 
  for 
  Map 
  2 
  438 
  

  

  LXI. 
  Panorama 
  of 
  Long's 
  Peak 
  440 
  

  

  Eeport 
  of 
  A. 
  S. 
  Packard, 
  Jr. 
  

  

  Plate 
  LXII. 
  Eocky 
  Mountain 
  Locust 
  and 
  its 
  young 
  810 
  

  

  LXIII. 
  Parasites 
  and 
  enemies 
  of 
  the 
  Eocky 
  Mountain 
  Locust 
  810 
  

  

  LXI 
  V. 
  Destructive 
  Locusts 
  and 
  the 
  Flesh-Fly 
  810 
  

  

  LXV. 
  Insects 
  injuring 
  wheat 
  and 
  corn 
  810 
  

  

  LXVI. 
  Insects 
  injuring 
  the 
  potato 
  810 
  

  

  LXVII. 
  Insects 
  injurious 
  to 
  the 
  onion 
  810 
  

  

  LXVIIL 
  The 
  Grape 
  Phylloxera 
  810 
  

  

  LXIX. 
  Insects 
  injuring 
  the 
  apple 
  810 
  

  

  LXX. 
  Insects 
  inj 
  urious 
  to 
  forest-trees 
  810 
  

  

  MAPS. 
  

   Eeport 
  of 
  G. 
  E. 
  Bechler. 
  

  

  Map 
  of 
  Middle 
  Park 
  and 
  Eastern 
  Eocky 
  Mountain 
  slojie 
  440 
  

  

  Map 
  of 
  South 
  Park 
  440 
  

  

  Eeport 
  of 
  A. 
  S. 
  Packard, 
  Jr. 
  

  

  Map 
  of 
  distribution 
  of 
  the 
  Hessian 
  Fly 
  and 
  Wheat-Midge 
  810 
  

  

  Map 
  of 
  distribution 
  of 
  the 
  Chinch-Bng 
  810 
  

  

  Map 
  of 
  distribution 
  of 
  the 
  Northern 
  Army-Worm 
  - 
  810 
  

  

  Map 
  of 
  distribution 
  of 
  the 
  Cotton 
  Army-Worm 
  and 
  Boll- 
  Worm 
  810 
  

  

  Map 
  of 
  distribution 
  of 
  the 
  Joint- 
  Worm 
  810 
  

  

  WOOD-CUTS 
  IN 
  TEXT. 
  

  

  Eeport 
  op 
  A. 
  S. 
  Packard, 
  Jr. 
  

  

  Page. 
  

  

  Egg-laying 
  appendages 
  of 
  Eocky 
  Mountain 
  Locust 
  625 
  

  

  Head 
  of 
  larva 
  of 
  Two-lined 
  Telephorus 
  662 
  

  

  Parasite 
  of 
  Hessian 
  Fly 
  696 
  

  

  Adult 
  and 
  immature 
  stages 
  of 
  Chinch-Bug 
  698 
  

  

  Full-grown 
  Northern 
  Army-Worm 
  707 
  

  

  Pupa 
  of 
  same 
  707 
  

  

  Moth 
  of 
  same 
  708 
  

  

  Young 
  Wheat-Worm, 
  greatly 
  magnified 
  713 
  

  

  Corn-Maggot 
  718 
  

  

  June 
  Beetle 
  720 
  

  

  Spittle 
  insect 
  721 
  

  

  Map 
  showing 
  spread 
  of 
  Colorado 
  Potato-Beetle 
  726 
  

  

  Tachina 
  parasite 
  727 
  

  

  Hairy 
  Potato-Maggot 
  , 
  733 
  

  

  Fig. 
  

  

  1. 
  

  

  I'ig. 
  

  

  2. 
  

  

  I'lg. 
  

  

  3. 
  

  

  Fig. 
  

  

  4. 
  

  

  1^'ig. 
  

  

  5. 
  

  

  I'lg. 
  

  

  6. 
  

  

  Fig. 
  

  

  7. 
  

  

  I'lg. 
  

  

  8. 
  

  

  Fig. 
  

  

  9. 
  

  

  l-'ig. 
  

  

  10. 
  

  

  Fig. 
  

  

  11. 
  

  

  Fig. 
  

  

  12. 
  

  

  i-'ig. 
  

  

  13. 
  

  

  