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fresh water. A- few examples ofthe lost.b capabilities of the works on board may be given. If she is accompanying a fleet at sea and one of the ships loses a pro- peller, instead of being towed home to a dock yard, the commander will sim- ply signal to the Cyclops for a new pro- peller to be made and the order will be 'executed. The same applies to anchors, and in this connection it is amusing to see a huge anchor hanging over the bows of the Cyclops in correct position which on close examination proves to be made of wood. This is simply one of the complete sets of templets which the vessel carries for all sorts of castings re- quired in the navy. In addition to hav- ing any portion of machinery renewed or repaired, vessels of the fleet, in case of the refrigerating plant breaking down, can be supplied with unlimited quantities of ice from the Cyclops, made on board, and in case of accidents to their condensing plant supply them with fresh water. The vessel has taken two years to fit out since she was launched. She has a speed of about 16 knots an hour, and she is believed to be the only specially-built craft of her kind in the world. LUBRICATION. There is probably no factor that has a more direct bearing on the cost of manufacture 'than the lubricating of machinery and yet it is doubtful if there is another item connected with the operation of the average plant less understood by owners, their managers and superintendents in charge. The mechanical installation is of the highest known efficiency, everything is ' done in the equipment of a plant to se- cure economy in its operation. After all this is done, frequently a long step is taken in the opposite direction by the use of a lubricant unsuited to the existing conditions; the office of a lubri- cant is not merely to secure quiet running of engines and machinery with temperatures of tthe bearings not alarmingly high but primarily to re- duce friction and wear to a minimum, and a lubricant that will do this is the best to use, no matter what the price may be. Messrs. Adam Cook's Sons, 313 West street, New York City, the only mak- ers of "Albany Grease," say in urging the special merit of that lubricant, that few realize the great loss in power due to the friction of wearing parts; it may probably be fairly estimated that one-half the power expended in the average case is wasted on lost work, being consumed in Overcoming the friction of lubricated surfaces, and a reduction of 50 per cent in the work THE Marine REVIEW y friction has often been secured by a change of lubricants. Among the expenses chargeable to waste pow- er, due to inferior lubrication, may be included: (1) The cost of power pro- duced in excess of that really re- quired; (2) wear and tear of machin- ery, which is constantly doing more work than should be required Or It. It is more difficult to do more than point out the danger' due to the use of inferior lubricants, there being so many substitutes placed on the mar- ket with a schedule of laboratory tests which are useless and mislead- ing to anyone other than a manufac- turer of lubricants, who makes use of them merely as a means of insuring uniformity in his manufactured prod- ucts and not as a measure whereby to judge their practical value. As a gen- eral guide 'in purchasing a lubricant it might be said that a. grease which | is uniform in quality, every part of which is.a lubricant and will not gum 'or leave a sediment is of the greater value. : - From many careful experiments and tests made it is certain that a grease such as "Albany Grease," contains all the elements for perfect lubrication and is the best and most economical for any bearing, for the reason that is a purely animal grease, free from all destructive acids, will lubricate 'and preserve 'the bearings of machin- ery better than any of the so-called mineral greases on the market today, as it has done for nearly forty years. Having comparatively low melting points for the different consistencies it will more readily melt, 'and thus lubri- cate, cool and preserve a bearing which from carelessness, inattention or the improper placing. or setting of cups would otherwise burn or cut out and be practically destroyed by the use of mineral greases with high melt- ing points. Take, for instances, a min- eral grease with a melting point of 300 degrees (and most of those ton the market range in that neighbor- hood, with some running as high as 600 degrees) and place it in open box bearing caps; the usual result is that the bearing will get hot almost to the melting point of the grease before it will flow over the bearing and lubri- cate it. This is getting pretty close to the danger point for babbitted bearings and if the heating is long continued will destroy them. Besides if the bearing should be neglected for a short time and not supplied with grease, 'a burned out bearing or a fire will be the inevitable result. Under the same circumstances, No. XXX 'Al- bany Grease, which is of the hardest ' consistency made, _with the highest "melting point, 175 degrees, would melt and flow over the bearings, lubri- cating and cooling it, 'on account of its peculiar properties, long before the heat of the bearing had neached the danger point. Mineral greases, furthermore, are injurious to the metals forming the bearing and leave upon the bearings deposits of such substances as gum, lime, etc., which extra thickness and resistance causes wear, and tear of the metals and means more retardation and consequently more driving power, There is record of many instances where, as a result of using lubricants of such limited endurance, accidents of a serious nature have occurred, nec- essarily causing shut down, just atthe time when the operation of a-plant to its fullest capacity was imperative. REFRIGERATING MACHINES ON BOARD LAKE VESSELS. After years of experimentation arti- ficial refrigerating plants on board mod- ern lake vessels are pronounced a suc- cess. They are an improvement over the use of ice in cost, convenience, and in the efficiency of the temperature se- cured. They effectively do away with the nuisance of handling and caring for the ice, which otherwise would have to be used on trips and also ren- der possible colder and dryer tempera- tures, a superior sanitation, and a con- sequent better preservation of mer- chandise. Refrigeration at any desired degree is available at all times at a minimum of expense after the plant is once in- stalled, because labor, power, and other incidentals necessary for the operation 'of such a plant on land are always in existence on shipboard. The refrigerating machines built by the United Machine Co., 508-510 How- ard street, Detroit, Mich., are particu- larly adapted to vessel use. They are slow speed, self-oiling and enclosed type, but by nemoval of the 'covet plates all working parts are easily 'ac- cessible. Power is supplied by an -au- tomatically governed and oiled engine specially designed for the purpose, costing practically nothing to operate, because an amount of steam approxi- mating a leak from the boiler is suffi- cient to run it. The machine connect- ed. with engine occupies 3 1/3 ft. by 1 5/6 ft. space, standing 4 5/6 ft. high. It may be placed in any convenient part of the engine room, and owing to its automatic construction, it' is no extra tax upon the time of the engi- meer or his assistants.