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Za2 omy of the compound engine, there is a very general conviction among steam- boat men that the increase of weight and complications mitigates any benefits that accrue from their use. Personally, I am _ convinced that should the simple cylinders of these boats be made larger and a_ suitable short cut-off be used, the same power may be obtained on about one-half the fuel now used. Some time ago we had an opportunity to indicate the engine of a stern-wheel boat, the en- gines being 1614 in. diameter and 5¥%- ft. stroke. The initial pressure was 205 Ib. cut-off at three-fourths of the stroke. The terminal pressure was 143 lb., thus wasting more steam than was utilized. It may seem incredible, but this is general practice in many packets, and nearly all towboats. Work and Horse-Power. I desire to speak of the work done under existing methods. It is almost impossible to obtain any data of horse- power and work resulting. We, how- ever, some .few years ago, took cards . HE reputation of the Tyne as the birthplace of all manner of sea-going craft was upheld by the production of the /sea-going railway train ferry steam- er Drottning Victoria which departed on Tuesday, June 22, from her build- ers' yard, the Neptune Works, New- castle-on-Tyne, of Swan, Hunter & Wigham Richardson, Ltd., for Sweden, where she goes to take up the service THe Marine Review of a towboat having cylinders 20 in. by 8 ft. when towing 17 empty barges, each 125 ft. by 26 ft. drawing about 1 ft, and one fuel boat, up-stream, the current being estimated at three miles per hour. The speed of the boat passing the shore was 3 2/3 miles, the actual speed being 6 2/3 miles per hour. The card herewith shows 210 lb. initial pressure, 188 Ib. mean effect- 'ive pressure, and a_ terminal of 148 and 194 Ib. respectively, the revolu- tions being 14 per minute, equalling 786 I. H. P., but think what might have been attained if the steam, which was teleased at a mean of 171 Ib., had been utilized. Who will say after this western river boat is what to be? Mr. Ward concluded his paper with a discussion of the passenger packet boat. and the tunnel boat, which of late years he has developed and which he believes to be, when carefully designed and properly built, much superior to the paddle-wheel steamers now in use, having all the backing and handling qualities of the stern-wheel boat with greater economy. that the it ought Car Ferry Drottning Victoria between Trelleborg and Sassnitz, under the ownership of the royal administra- tion of the Swedish state railways. She is one. of four similar ferries, two belonging to the Swedish state railways, and two to the German gov- ernment. The two latter are being built in Germany, and of the two form- er the other is under construction in Sweden. These ferries are entirely a new de- ERAN AARON SHOWING THE MerTHOp oF EMBARKING AND DISEMBARKING THE CARS August, 1909 parture. Railway train ferries have been known for many years, indeed so long ago as 1864, the old firm of Wigham Richardson & Co. built at the Neptune Works a ferry for carrying trains across the Rhine, and in 187] they built the train ferry Lillebelt, one of the first, if not the very first LookInc From THE TRAIN FERRY SHOWING CorRIDOR CoACHES TRAY- ELING Over THE BripGe TowaArp VIEW THE Car DeEcK STEAMER. OF THE of the numerous fleet of train ferries, plying in Danish waters in connection with their railway service. Hitherto such steamers have travelled in smooth or comparatively smooth water, but the Drottning Victoria has been built to carry trains: across the open sea, and across a sea which is certainly not always smooth. This con- tingency has, however, never been lost sight of either in the design or con- struction of the vessel. The vessel herself is built with very graceful lines, and has the stern open to receive the trains stand in two lines the deck, the en- trance to which can be closed by doors when at sea. Specially constructed landing stages have been formed, ex- actly fitting the form of the vessel, whilst to assist the vessel in getting into position quickly, she has been fit- ted with a bow rudder as well as a stern rudder. Once the cars on board they will be held in position by many screws and ring attached to the deck, and by spring buffers at the end. The whole of fasten- ing appliances being of the most care- fully thought out design, and of the most powerful description. which on Car are plates these