| [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 |