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MARINE REVIEW. | 13 Search Lights on Lake Ships. PERATIONS of search lights are always interest- ing, especially when they are used aboard ships. The Rushmore Dynamo Works of Jersey City, N.J., has for years engaged in the manufacture of search lights and ma- rine electrical equipment and a large num- ber of their lights are to be found on lake steamers. This works has in the last year brought out a complete line of high-power lens mirror projectors for every class of light there is an ordinary locomotve head light reflector fitted with an arc lamp in Fic. 4. place of the oil wick, and while this reflector absorbs nearly all the light, it cannot be built for high power as it soon rusts away. Inthe new Rushmore projector there is mounted in the Fra. 1. rear of the cylinder, as shown in figure 3, alarge silvered lens, and a special focusing lamp lies in the case in the bottom of the cylinder, which is en- tirely empty except for the slender carbon holders which cast no shadow, and the carbons are so placed that all the light generated is thrown upon the mirror and is projected forward ina perfectly straight beam. This arrangement, which avoids all overheating, permits of the use of the most powerful current in the arc, and by recent tests in the navy it has been shown that the projected beam has an intensity of over 1,000,000 candles per ampere in the arc. Figure 1 shows the plain projector as used in the navy and on large lake and ocean steamers. Figure 2 shows the pilot house light fitted Fig. 3. with a new controlling attachment for operating from within the pilot house. Figure 3 shows the small pilot house light, which is also extens- ively used on yachts, with front and back door open, showing the lens ~ and lamp, from which it will be seen that it is easily cleaned and supplied with new carbons. The head letter in this article shows the new Rush- More aplanatic lens with reversedimage. This new lens has the remark- service. Inthe common so-called search - able property that by a slight movement it causes the narrow beam to be spread over a wide area, thus dispensing with the heavy and costly diverg- ing lenses heretofore used in the navy. Another type of this projector is fitted with a small motor in the base, so that the light may be placed at any point on the ship or on the mast head and the beam thrown in any direction by turning a lever of a small electric controller in the pilot house, thus doing away with all mechanical connections. These new projectors are designed for the roughest ser- vice and are free from allcomplications. Their power is said to be some- thing wonderful and fully double that of the best French lights for the same current consumption, and they are fast replacing other makes. The Rushmore works has a complete lens-making plant, with which the cost of lenses has been reduced so that the best projectors may be sold at figures little higher than those that have prevailed on the old-style head lights. Cargo and Speed Records--Lake Freight Steamers. Notwithstanding the low stage of water that prevails on the lakes, it is probable that the cargo records of previous years will be broken early this season by the big ships now going into commission. It is announced already that one of the Minnesota company's new steel tow barges has taken to Buffalo from Chicago a cargo of about 156,000 bushels of corn, but as authentic figures regarding this cargo are not yet at hand it is not used in the statement that follows: Iron ore--S. 5. Curry, Hawgood & Avery Transit Co. of Cleveland, 4,569 gross or 5,117 net tons, Escanaba to South Chicago; Maritana, Min- nesota Steamship Co. of Cleveland, 4,260 gross or 4,771 net tons, Esca- naba to South Chicago; Selwyn Eddy, Eddy Bros of Bay City, Mich., 3,897 gross or 4,364 net tons, Escanaba to Ashtabula, Lake Superior car- goes--Schooner Aurania, John Corrigan of Cleveland, 3,928 gross or 4,399 net tons, Duluth to Ashtabula on 14 feet 4 inches draft; steamer Victory, Interlake Co. of Cleveland, 3,689 gross or 4,132 net tons, Iwo Harbors to Cleveland on draft of 14 feet 3 inches. Grain--Selwyn Eddy, Eddy Transportation Co. of Bay City, 130,820 bushels of wheat, Detroit to Buffalo; Centurion, Hopkins Steamship Co. of St. Clair, Mich., 152,000 bushels of corn, Chicago to Buffalo; S. S. Curry, Hawgood & Avery Transit Co, of Cleveland, 246,673 bushels of oats, Chicago to Buffalo. Coal--S. S. Curry, Hawgood & Avery Transit Co. of Cleveland, 4,535 net tons bituminous, Conneaut to Gladstone; Selwyn Eddy, Eddy Bros. of Bay City, Mich., 4,252 net tons anthracite, Buffalo to Milwaukee. Speed--Owego, Union Line of Buffalo, Buffalo to Chicago, 889 miles, 45 hours and 16 minutes, 16.4 miles an hour; Centurion, Hopkins Steam- ship Co. of St. Clair, Mich., Buffalo to Duluth, 997 miles, 67 hours and 50 minutes, 14.7 miles an hour. : Stocks of Grain at Lake Ports. The following table, prepared from reports of the Chicago board of trade, shows the stocks of wheat and corn in store in regular elevators at the principal points of accumulation on the lakes on April 25, 1896: Wheat, bushels. Corn, bushels. Chica Sor se. :cce-ceccceeseacttecce sesenapdesserilGnlSo,000 5,993,000 Wrltthig. covscqtecssracereenteaseast Sears 14,686,000 147,000 Milwarikee.......cce.sscccecees rerenee ade see 843,000 2,000 Wetrolte.scenen-ecepeares seeticnst econ Segdeecss 216,000 17,000 Toledo ....ssscrccccooccereress Peeeeecneneeseecs 720,000 _ 481,000 Buffalo.....0+.5+s000 ena Genaes nega eemeaeaeed 759,000 755,000 POtal ss, csosereecroe rae esenscdceersssoes 33,413,000 7,395,000 As compared with a week ago, the above figures show at the several points named an increase of 369,000 bushels of wheat and 715,000 bushels of corn. Great Railway and Steamship Combinations. We have some very big railway and steamship corporations in this country but they do not compare very favorably with British lines operat- ing in andout of London. There is no steamship and railway combina- tion here that approaches in immensity the operations of the London & Southwestern company, which controls wharves, dry docks, etc., at South- hampton. But the London & Northwestern R'y is even greater in its scope. This company has a capital of $595,000,000 and a revenue of over $6,500 an hour. Its 2,300 engines travel over forty-one million miles in the year. The company employs over 60,000 men and carries over 156,000 passengers aday. It makes everything itcan for its own use, not only building its own bridges, engines and rolling its own rails, but making even the coal scuttles for its stations and the wooden limbs for the injured ofits staff. Repairs on the line involve an expenditure of $12,500 a day. The approach roads, the bridges and signals, and other necessaries require $700,000 a year to keep them in working order, and about $500,000 a year goes in painting and repairing, besides $150,000 in rebuilding. The wages bill for the permanent way alone amounts to $130,000 a month.