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EXTREME LEFT. March, 1913 THIS VIEW IS TAKEN FROM is Situated at the entrance to the Culebra cut, a distance of 25 miles, and that portion has already been filled with water, forming Gatun lake. The Chagres river enters the canal at Gamboa, the canal having been dyked near Bas Obispo, just south of Gamboa, in order to keep the wa- ter out of the Culebra cut. It was on. Sept. 25, 1513, that the great Span- ish adventurer, Balboa, first. saw the Pacific ocean from the summit of Balboa hill, from which vantage point one may on a clear day see both oceans, and it was doubtless largely sentiment which prompted the desire to send the first boat through the canal on the 400th anniversary of this event; THE MARINE REVIEW THE WEST BANK but the Cucaracha slide has made this impossible. The plan of the canal is easily un- derstood. On the Atlantic side ves- sels enter a sea level channel ex- tending 7 miles to Gatun, where they are lifted 85 ft. through a flight of three. locks. into Gatun lake. The locks have a lift of 28% ft. each. Ves- sels then proceed at this summit level across Gatun lake, through Culebra cut, which is really an arm of Gatun lake, to the lock at Pedro Miguel, a distance of 32 miles, where they are lowered 30 ft. into Miraflores lake, a small. artificial, body of water of about 2 sq. miles formed by impound- ing the waters of the Cocoli, the, Rio 93 Grande and the Pedro Miguel rivers. Passing through Miraflores lake, a dis- tance of a mile and a half, the ves- sels arrive at Miraflores locks, where they are lowered 55 ft. to sea level by two locks in flight, and then proceed through a sea level channel to the Pacific ocean, a distance .of 8 mites. The vessels, therefore, pass through six locks in their journey from ocean to ocean, and it is estimated that it will take from 10 to 12 hours to nav- igate the canal, three of which will be spent in passing through the locks. It should be stated that all of the locks are in duplicate, forming east and west-bound courses. After entering Gatun lake vessels FROM FOR THE CONCRETE WORK IN THE ATLANTIC DIVISION