| | | PAGE |
| Maps and Plans in Volume I | [xvii] |
| Conspectus of Events | [xix] |
| Pronunciation of Spanish | [xxi] |
| CHAPTER | |
| I. | Mexico and the Mexicans | [1] |
| II. | The Political Education of Mexico | [29] |
| III. | The Relations between the United States and Mexico, 1825–1843 | [58] |
| IV. | The Relations between the United States and Mexico, 1843–1846 | [82] |
| V. | The Mexican Attitude on the Eve of War | [102] |
| VI. | The American Attitude on the Eve of War | [117] |
| VII. | The Preliminaries of the Conflict | [138] |
| VIII. | Palo Alto and Resaca de Guerrero | [156] |
| IX. | The United States Meets the Crisis | [181] |
| X. | The Chosen Leaders Advance | [204] |
| XI. | Taylor Sets out for Saltillo | [225] |
| XII. | Monterey | [239] |
| XIII. | Saltillo, Parras, and Tampico | [262] |
| XIV. | Santa Fe | [284] |
| XV. | Chihuahua | [298] |
| XVI. | The California Question | [315] |
| XVII. | The Conquest of California | [331] |
| XVIII. | The Genesis of Two Campaigns | [347] |
| XIX. | Santa Anna Prepares to Strike | [370] |
| XX. | Buena Vista | [384] |
| Notes on Volume I | [402] |
| Appendix (Manuscript Sources) | [565] |