LIST OF ILLUSTRATIONS 



COLORED PLATES 



PLATE . FACING 



PAGE 



I— Peacock amid foliage . Frontispiece 



II— Male Ruffed Grouse in the forest 38 



III— Two sketches of male Wood Ducks, in the water 59 



IV— Male Wood Ducks - . . ... . . . . 70 



V. — Colored diagram illustrating the use of 'ruptive' coloration 77 



VI. — Blue Jays against snow, and Birds-of -Paradise in the tropical forest .... 107 

 VII.— Cottontail Rabbit among ferns and moss and grasses . . . . . . .119 



VIII— Roseate Spoonbills, and the skies they picture . 147 



IX.— Roseate Spoonbill, Red Flamingoes, and twilight sky .156 



X. — Flamingoes, at dawn or sunset, and the skies they picture .156 



XI. — Copperhead Snake on dead leaves . . - 172 



XII.— Caterpillars (Luna and green sphinx) 183 



XIII. — Caterpillars (of beech-, birch- and elm-leaf-edges) .188 



XIV. — Caterpillars (of beech- and oak-leaf-edges, etc.) . .192 



XV.— Caterpillars. (Mirror-back larva, dead-leaf sphinx, frond-bearing larva) . . .194 



XVI— Caterpillar, and spider. (Pine-tuft sphinx, porcelain-white spider) . . . . 196 



BLACK-AND-WHITE FIGURES 

 (Photographs from Nature, etc., and diagrams.) 



FACING 

 PAGE 



Diagram in the text, 3 figs., Chap. I . . . . . 14 



FIGURE 



i.— Models illustrating the use of counter-shading. Photograph 24 



2— Model illustrating the use of counter-shading. Photograph 24 



3. — Models illustrating the use of counter-shading. Photograph ...... 24 



4. — Models illustrating the use of counter-shading. Photograph 24 



5. — Models illustrating the use of counter-shading. Photograph . . . . . . 24 



6. — Plymouth Rock hen conspicuous against Plymouth Rock hen skins. Photograph . . 26 



XV 



