| Birdseye View of the Panama Canal Zone | Color insert |
| | FACING PAGE |
| George W. Goethals, Chairman and Chief Engineer | 10 |
| A Street in the City of Panama | 11 |
| Theodore Roosevelt | 18 |
| William Howard Taft | 18 |
| Woodrow Wilson | 18 |
| Vendors in the Streets of Panama | 19 |
| A Native Boy Marketing | 19 |
| Lieut. Col. W. L. Sibert | 43 |
| The Upper Locks at Gatun | 43 |
| Toro Point Breakwater | 43 |
| Concrete Mixers, Gatun | 50 |
| A Center Wall Culvert, Gatun Locks | 50 |
| The Machinery for Moving a Lock Gate | 51 |
| Steam Shovels Meeting at Bottom of Culebra Cut | 74 |
| L. K. Rourke | 74 |
| The Man-made Canyon at Culebra | 75 |
| The Disastrous Effects of Slides in Culebra Cut | 82 |
| U. S. Ladder Dredge "Corozal" | 83 |
| A Mud Bucket of the "Corozal" | 83 |
| W. G. Comber | 83 |
| Col. William C. Gorgas | 106 |
| The Hospital Grounds, Ancon | 106 |
| Lieut. Frederic Mears | 107 |
| The Old Panama Railroad | 107 |
| Sanitary Drinking Cup | 114 |
| Mosquito Oil Drip Barrel | 114 |
| Spraying Mosquito Oil | 114 |
| Typical Quarters of the Married Laborer | 115 |
| A Native Hut | 115 |
| Maj. Gen. George W. Davis | 138 |
| Rear Admiral J. G. Walker | 138 |
| Theodore P. Shonts | 138 |
| John F. Wallace | 138 |
| John F. Stevens | 138 |
| Charles E. Magoon | 138 |
| Richard Lee Metcalfe | 139 |
| Emory R. Johnson | 139 |
| Maurice H. Thatcher | 139 |
| Joseph Bucklin Bishop | 139 |
| H. A. Gudger | 139 |
| Joseph C. S. Blackburn | 139 |
| Brig. Gen. Carroll A. Devol | 146 |
| American Living Quarters at Cristobal | 146 |
| Harry H. Rousseau | 147 |
| Lowering a Caisson Section | 147 |
| John Burke | 170 |
| Meal Time at an I. C. C. Kitchen | 170 |
| Washington Hotel, Colon | 171 |
| Major Eugene T. Wilson | 171 |
| The Tivoli Hotel, Ancon | 171 |
| Floyd C. Freeman | 178 |
| I. C. C. Club House at Culebra | 178 |
| A. Bruce Minear | 179 |
| Reading Room in the I. C. C. Club House, Culebra | 179 |
| Col. Chester L. Harding | 202 |
| The Gatun Upper Locks | 202 |
| Lieut. Col. David D. Gaillard | 203 |
| Culebra Cut, Showing Cucaracha Slide in Left Center | 203 |
| The Man of Brawn | 210 |
| Ferdinand de Lesseps | 211 |
| An Old French Excavator Near Tabernilla | 211 |
| Philippe Bunau-Varilla | 211 |
| S. B. Williamson | 234 |
| The Lower Gates, Miraflores Locks | 234 |
| Middle Gates, Miraflores Locks | 235 |
| H. O. Cole | 235 |
| The Pay Car at Culebra | 242 |
| Edward J. Williams | 242 |
| Uncle Sam's Laundry at Cristobal | 243 |
| Smoke from Heated Rocks in Culebra Cut | 266 |
| Tom M. Cooke | 267 |
| The Post Office, Ancon | 267 |
| A Negro Girl | 274 |
| A Martinique Woman | 274 |
| San Blas Chief | 274 |
| An Indian Girl | 274 |
| An Italian | 274 |
| A Timekeeper | 274 |
| A Spaniard | 274 |
| A Negro Boy | 274 |
| Testing the Emergency Dam, Gatun Locks | 275 |
| Col. Harry F. Hodges | 275 |
| The Ancon Baseball Park | 298 |
| Caleb M. Saville | 299 |
| Gatun Spillway from Above and Below | 299 |
| An Electric Towing Locomotive in Action | 306 |
| Blowing Up the Second Dike South of Miraflores Locks | 307 |
