With abundant water power at the several locks and the dam, there is no reason why the whole canal should not be sufficiently illuminated by electric lights; and with beacons and range lights in the river and lake, vessels can travel at all times with perfect safety. The estimated cost of the canal is 64 millions of dollars, or 13,000,000_l._ including electric lighting, &c., and it is calculated that the work can be completed in six years. ESTIMATES OF COST MADE IN 1888. Per cubic yard. TABLE OF PRICES. dols. Excavation in earth 0·40 Excavation in rock 1·50 Excavation in rock (submarine) 5·00 Dredging 0·20 and 0·40 Concrete 6·00 and 9·00 Stone pitching 2·00 Stone in breakwaters 1·50 Puddle 0·75 Timber 0·50 _Western Division:—_ dols. Excavation and embankment 8,496,292 Diversion of Rio Grande and Rio Lajas 1,870,447 Other auxiliary work, including R. R. 753,329 Locks (four) 4,762,480 Harbour of Brito 1,611,500 ─────────── Total $17,484,048 _Middle Division:—_ dols. Lake Nicaragua 379,520 River San Juan 3,074,791 Valley of R. San Francisco 1,112,413 Dam across R. San Juan 1,858,975 Embankment across R. San Francisco 1,331,262 Embankment near Ochoa 45,578 Railroad 240,000 ────────── Total $8,042,539 _Eastern Division:—_ dols. The “Divide” 11,982,938 From the “Divide” to Greytown 8,077,294 Locks (three) 3,561,515 Railroad 320,000 Harbour of Greytown 1,766,625 ─────────── Total $25,708,372