CONTENTS. 



CHAPTER. PAGE. 



I. Methods of Study of Natural History . . 23 



II. Classification of Animals ..... 29 



III. Some Interesting Insects, with Notes on the Class (Insecta] . 35 



IV. Crayfish and Crabs (Crustacea) .... 54 



V. Sawfish, Rays, Sharks, and Their Allies, with Notes on Deep- 

 sea Fishes (Elasmobranchii, etc.) . . . .64 



VI. Sea Horses and Eels (Hippocampidce : A nguillidce) . 82 



VII. Frogs, Toads, Newts, and other Amphibians (Amphibia) . 91 



VIII. Some Observations on Lizards (Lacertilia) . . . 108 



IX. Protective Coloration in Snakes, with other Notes about Them 



(OpUdia) . .... . . .130 



X. Turtles and Tortoises (Chelonia) . . 146 



XI. Alligators and Crocodiles (Crocodilia) , . . 156 



XII. Grebes, Loons, and Auks (Pygopodes : Alcce.) . . 164 



XIII. Gulls and Their Allies (Longipennes) . . . 183 



XIV. Pelicans and Their Relatives (Steganopodes) . . 195 

 XV. Meadow-larks and Partridges (genus Sturnella : Perdicinai) 204 



XVI. American Vultures. (Superfamily Cathartoidea.) (Family 



Catharlidce.) ...... 221 



XVII. Some of the Owls of the United States (Striges) . 232 



XVIII. The Carolina Paroquet and other Notes . . . 250 



XIX. The United States Cuckoos (Family Cuculidce) . . 260 



XX. Woodpeckers: Photographically and Pterylographically con- 

 sidered (Pici) , 270 



