As everything in the way of saving of fuel was of first-rate importance, we devoted ourselves to that branch of economic working. It was necessary that buoyancy or space should be left for cargo, at the same time that increased speed should be secured, with as little consumption of coal as possible. The Messrs. Elder and Co., of Glasgow, had made great strides in this direction with the paddle steam-engines which they had constructed for the Pacific Company on the compound principle. They had also introduced them on some of their screw steamers, with more or less success. Others were trying the same principle in various forms, by the use of high-pressure cylinders, and so on; the form of the boilers being varied according to circumstances, for the proper economy of fuel. The first thing absolutely wanted was, perfectly reliable information as to the actual state of the compound engine and boiler up to the date of our inquiry. To ascertain the facts by experience, we dispatched Mr. Alexander Wilson, younger brother of the manager who had been formerly a pupil of Messrs. Macnab and Co., of Greenock, and was thoroughly able for the work--to make a number of voyages in steam vessels fitted with the best examples of compound engines. The result of this careful inquiry was the design of the machinery and boilers of the Oceanic and five sister-ships. They were constructed on the vertical overhead "tandem" type, with five-feet stroke (at that time thought excessive), oval single-ended transverse boilers, with a working pressure of sixty pounds. We contracted with Messrs. Maudslay, Sons, and Field, of London, for three of these sets, and with Messrs. George Forrester and Co., of Liverpool, for the other three; and as we found we could build the six vessels in the same time as the machinery was being constructed; and, as all this machinery had to be conveyed to Belfast to be there fitted on board, whilst the vessels were being otherwise finished, we built a little screw-steamer, the Camel, of extra strength, with very big hatchways, to receive these large masses of iron; and this, in course of time, was found to work with great advantage; until eventually we constructed our own machinery.