I. Waves of the Sea 1 



II. Coast and Tableland 14 



III. Walks in the Cactus Country 37 



IV. Oasis and Desert 66 



V. The Mesquite Wilderness . . . . . .91 



VI. The Marshes of Chapala 106 



VII. Camping in a Barranca 122 



VIII. Nature near Camp . . . . . . . 152 



IX. Near the Twin Volcanos 170 



X. The Magic Pools 205 



XI. Along the Stream of Death 228 



XII. The Tropics 258 



XIII. The Hot Lands of the Pacific 300 



XIV. Around the Volcano by Moonlight .... 340 

 XV. How We Did It. By Mrs. C. William Beebe . . 363 



APPENDIX 



List of the Birds and Mammals observed . . 377 



INDEX 401 



