The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

22 accurately; even though it had to be towed 10,000 miles. The rapidity of construction, combined with accuracy of cost, could not be approached in the DURBAN FLOATING DOCK WITH THE MAIL STEAMER KENT LIFTED. CAPABLE OF LIFTING VESSELS UP TO 8,500 TONS. THE Marine REVIEW, age in any way the time honored. stone graving dock. Both types are of in- estimable use to the navies of the world. The floating dock, however, THIS DOCK IS BUILT 'BY SWAN, HUNTER & WIGHAM RICHARDSON FOR THE NATAL GOVERNMENT. case of the stone graving dock. As re- gards durability and cost of upkeep, - ample data is now available on which to found the deliberate pronouncement that with reasonable care and attention the life of a floating dock may be in- definitely prolonged. The floating dock has a great advantage in respect of the cost of coal and oil, as the power required to lift a ship is much less than that requized for a graving- dock of similar capacity. Instances can be given where it costs, on the average, less than $4.50 to lift vessels displacing 3,000 tons. As the useful life of a floating dock may be fairly taken as at 50 years, it requires only a sinking fund equal to one per cent per annum on the first cost of the dock invested at 214 per cent. The average cost of maintenance is very little more than one per cent per annum of the Hest cost of the dock: = In thus out: lining the advantages of the floating dock, there is no intention to dispar- where the construction of a graving dock is either not practicable or where it could only be carried out at a pro- hibitive cost. The various uses to which floating 'docks can be put has been brought into prominence by the wreck of the Brit- ish battleship Montagu, now being salved near Lundy. Island in the Bris- tol channel. The draught of water in the damaged hull will be so great when- ever she is floated, as to render it a matter of impossibility to place-her in any available dry dock without first beaching her, and executing 'some re- pairs. That being so it is proposed to tow the floating dock now at Ber- muda, which is sufficiently large for the purpose in view, to Lundy, and place the ship in it for temporary re- pairs. If the Montagu is ever got off the rocks, the risk of sinking during the process of salvage, will be avoided by slipping underneath her the float- ing dock which will lift her sufficiently until bottom can be repaired. COLD STORAGE AND ICE ASSO- CIATION. Liverpool is the especial port for the importation of frozen meat and fruits of all descriptions, and it is also the head center in Britain of cold storage. So much is this that the port has a Cold Storage and Ice Association, which has a large number of members. Last month they held a meeting in the University of Liverpool, when Prof. W. H. Watkinson showed the visitors through the labora- tories. Mr. W. G. Brettell read a paper on "Ship's Refrigeration, With Special Reference to Maintaining Even Tempera- tures." This important paper is fully given in our contemporary, Cold Storage, PORT SAID FLOATING DOCK OF 3,000 TONS' LIFTING CAPACITY, SHOWING DREDGER LIFTED AT PORT SAID. has come to stay, and it supplies a long felt want in innumerable ports from which we give some extracts. Mr. Brettell said that ship refrigera-