900 THE COLLIERY GUARDIAN November 10, 1916. struction, being formed of steel discs connected by rods, with the object of preventing coal from being wedged between the buckets and the drums. The buckets are connected to plates instead of chains, and thus form a steel belt. It is claimed for these elevators that they are self-contained, portable, and can be adapted to various conditions, similar equipment having been used extensively for bunkering at New York Harbour, Hoboken, etc. In considering these modem coaling arrangements which have been provided at the terminals of the Panama Canal, the most noticeable feature is perhaps that of the under-water storage—intended solely for the naval requirements of the United States — and the continuation of the dry storage above the under-water storage. Then, the different types of equipment which have been provided for the several services of discharg- ing, storing, transferring, and loading, will be observed, and will probably be commented upon from the point of view of the several handlings, and the question of maintenance costs. Comparison may also be made with the facilities at the terminals of the Suez Canal, where no mechanical equipment is available. In addition to provision for coal supplies, it should be remembered that arrangements have also been provided for supplying fuel oil to vessels using the canal, as well as for the 'UNLOPOER YPifiRF UJPDUGT MO BERM CRMES STORAGE PILE ST OPP GE PILE Fig. 2.—Coal Discharging and Storage Equipment at Balboa. protective one, the trading effect of the project has been weighed carefully and appreciated—the United States being a commercial nation. It is rather beyond the scope of our subject to discuss the questions of general administration, tolls, and conditions imposed on vessels using the canal, except so far as concerns coal supplies. It will therefore suffice, perhaps, to mention that the expenditure incurred on and attending the construction of the canal is stated to be equivalent to about £85,000,000, and the cost of maintenance was estimated as equivalent to about £500,000 per annum. To cover interest on the capital expenditure, and maintenance charges alone, must therefore mean extensive use of the canal, or, on the other hand, will necessitate heavy 'tolls. As regards routes, it is probable that the canal will be generally used by vessels traversing the North Atlantic from Europe and the east coast of America, bound for Pacific ports, and vice versa. To mention a few voyages affected by the Panama Canal, from the point of view of distance saved—Montreal to Australia, 2,740 miles; New York to Australia, 2,300 miles; Eng- land to New Zealand, 1,600 miles; England to Ohili, 1,600 miles; and New York to China, 1,400 miles. It can thus be seen that a vessel from this country, steam- ing at an average speed of 14 knots, will reduce the States and Canada amounted to about 13 per cent.; vessels between Europe and the Pacific ports of South and Central America represented about 14 per cent.; between South and Central American Atlantic and Pacific ports, about 19 per cent.; and vessels from the United States Atlantic ports to Australia and New Zealand, about 11 per cent, of the total number. The actual number of vessels carrying cargo was 983, and the amount of cargo was about 5,000,000 tons. The receipts from tolls during the same period amounted to the equivalent of about £870,000, and the maintenance costs to about £832,500. This latter figure does not include depreciation, or capital charges, and the former figure is reduced by the refund of excess charges through the rate having been reduced to 1*25 dols. A comparison has been made between the tonnage which passed through the canal during the above-mentioned period and that handled by the Panama Railroad Com- pany across the Isthmus the previous year, which totalled about 643,000 tons. gjalmijiggiWBaB O 'To O 5 Fig. 3.—General Plan of Coaling Station at Balboa. ■ 9ft & is s >3 s ►2 United States naval requirements. At both terminals of the canal storage tanks have been provided by the Government, as well as a wharf equipped with oil pump- ing plant; and leases of ground for oil storages are granted, the tanks of which will be connected by pipe lines with the pumping plant, the charge for pumping being 4c. per barrel (42 gals.). Economic Considerations. The distance saved is perhaps the first consideration deciding ocean routes, as it means reduced freight charges on account of lower cost of the voyage, and greater earning capacity of vessels; also saving of time, which improves the conditions of, and increases, over- sea commerce. Whether the Panama Canal will have as great an effect on ocean commerce now as the Suez Canal did at the time of its opening, is a question which must largely depend on the administration. Although doubtless the principal consideration which decided the construction of the Panama Canal was a political and voyage to New Zealand or Chili by about four days. New York will have an advantage over England in trad- ing with Australasia and Japan by reduced freight charges, and therefore reduced cost of goods. Regarding the position of Japan, important developments are anti- cipated in the maritime commerce of that country, and proposals have been under consideration for a new ser- vice between Japan and New York vid the Panama Canal, with calls at New Orleans and Galveston. The principal object of this proposed service is 'to improve the traffic facilities for tea and silk cargoes from Japan, which are now discharged at San Francisco or Seattle, and are railborne to the east coast of North America. As to the traffic which actually passed through the canal during the first 10 months after it was opened, the following particulars may be noted :—The vessels engaged in the coastwise trade of the United States represented about 31 per cent, of the total; vessels bound between Europe and the west coast of the United A comparison with the Suez Canal may here also be of interest. During 1913, the year prior to the com- mencement of the war, when the conditions were normal, about 5,000 vessels passed through that canal, and the tolls amounted to over £5,000,000. It may be added that the cost of the Suez Canal, including improvements, has amounted to about £24,000,000. The question of distance affecting ocean trading routes must largely. depend on ‘ the possibility of securing return freights. If a vessel can save in time and cost by a shorter route, that saving may be more than outweighed if the return voyage has to be made in ballast; or if, to obtain return freight, the route has to be deviated from; and this really tends to the subject of coaling. The facilities for obtaining bunker supplies en route will, it must be remembered, increase cargo capacity, and aid intermediate freight being obtained; and therefore the effect of such conditions may be that a longer route is, in the end, more profitable than a