| Book I |
| I. | The State of Greece from the earliest Times to the Commencement of the Peloponnesian War | 1 |
| II. | Causes of the War--The Affair of Epidamnus--The Affair of Potidaea | 11 |
| III. | Congress of the Peloponnesian Confederacy at Lacedaemon | 28 |
| IV. | From the end of the Persian to the beginning of the Peloponnesian War--The Progress from Supremacy to Empire | 39 |
| V. | Second Congress at Lacedaemon--Preparations for War and Diplomatic Skirmishes--Cylon--Pausanias--Themistocles | 50 |
| Book II |
| VI. | Beginning of the Peloponnesian War--First Invasion of Attica--Funeral Oration of Pericles | 67 |
| VII. | Second Year of the War--The Plague of Athens--Position and Policy of Pericles--Fall of Potidaea | 87 |
| VIII. | Third Year of the War--Investment of Plataea--Naval Victories of Phormio--Thracian Irruption into Macedonia under Sitalces | 99 |
| Book III |
| IX. | Fourth and Fifth Years of the War--Revolt of Mitylene | 119 |
| X. | Fifth Year of the War--Trial and Execution of the Plataeans--Corcyraean Revolution | 140 |
| XI. | Sixth Year of the War--Campaigns of Demosthenes in Western Greece--Ruin of Ambracia | 155 |
| Book IV |
| XII. | Seventh Year of the War--Occupation of Pylos--Surrender of the Spartan Army in Sphacteria | 169 |
| XIII. | Seventh and Eighth Years of the War--End of Corcyraean Revolution--Peace of Gela--Capture of Nisaea | 187 |
| XIV. | Eighth and Ninth Years of the War--Invasion of Boeotia--Fall of Amphipolis--Brilliant Successes of Brasidas | 200 |
| Book V |
| XV. | Tenth Year of the War--Death of Cleon and Brasidas--Peace of Nicias | 229 |
| XVI. | Feeling against Sparta in Peloponnese--League of the Mantineans, Eleans, Argives, and Athenians--Battle of Mantinea and Breaking up of the League | 240 |
| XVII. | Sixteenth Year of the War--The Melian Conference--Fate of Melos | 267 |
| Book VI |
| XVIII. | Seventeenth Year of the War--The Sicilian Campaign--Affair of the Hermae--Departure of the Expedition | 275 |
| XIX. | Seventeenth Year of the War--Parties at Syracuse--Story of Harmodius and Aristogiton--Disgrace of Alcibiades | 290 |
| XX. | Seventeenth and Eighteenth Years of the War--Inaction of the Athenian Army--Alcibiades at Sparta--Investment of Syracuse | 303 |
| Book VII |
| XXI. | Eighteenth and Nineteenth Years of the War--Arrival of Gylippus at Syracuse--Fortification of Decelea--Successes of the Syracusans | 325 |
| XXII. | Nineteenth Year of the War--Arrival of Demosthenes--Defeat of the Athenians at Epipolae--Folly and Obstinacy of Nicias | 344 |
| XXIII. | Nineteenth Year of the War--Battles in the Great Harbour--Retreat and Annihilation of the Athenian Army | 349 |
| Book VIII |
| XXIV. | Nineteenth and Twentieth Years of the War--Revolt of Ionia--Intervention of Persia--The War in Ionia | 369 |
| XXV. | Twentieth and Twenty-first Years of the War--Intrigues of Alcibiades--Withdrawal of the Persian Subsidies--Oligarchical Coup d'Etat at Athens--Patriotism of the Army at Samos | 387 |
| XXVI. | Twenty-first Year of the War--Recall of Alcibiades to Samos--Revolt of Euboea and Downfall of the Four Hundred--Battle of Cynossema | 403 |
| Maps | 419 |
