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10 MARINE REVIEW. Marine REVIEW. DEVOTED TO THE LAKE MARINE AND KINDRED INTERESTS. oo re Oe ae ee PROPRIETORS. HOMER J. CARR, 4 Associate Editor and Manager Chicago Office, Western Union Building, 110 LaSalle Street. Published every Thursday at No. 516 Perry-Payne Building, Cleveland, O. SUBSCRIPTION--$z2.00 per year in advance. Convenient binders sent, post paid, 75 cents. Advertising rates on application. The books of the United States treasury department contain the names of 3,600 vessels, measuring 1,154,870.38 tons in the lake trade. In classification of this fleet the lakes have more steamboats of 1,000 to 2,500 tons than the combined ownership of this class of vessels in all other sections of the country. 'The number of vessels of 1,000 to 2,500 tons on the lakes on June 30, 1891, was 310 and their aggregate gross tonnage 512,- 787.58; in all other parts of the country the number of this class of ves- sels was, on the same date, 213 and their gross tonnage 319,750.84. The classification of the entire lake fleet is as follows: Class. Number. Tonnage. Siasyhen), WES eS cocar cngadeocdcanaeostoucpapuesscn dnc 1,592 756,751 -53 AMM Se ESSE Gen. seeunsagracst- ceqvapsts-crenaenme 1,243 325,131.06 Atal WOAES ss ccecaecsanenc ret fe diss Raadek sbaiece 703, 72,515.42 Ey ARS cose a sede ciate Savion Seem eataiahe ea eric aiele env slgaevin 62 20,472.37 STO tales neckties ce ieenacetee ss steed elepicne 3,600 1,154,870.38 Tonnage built on the lakes during the past five years, according to the reports of the United States commissioner of navigation, is as follows : nee No. of boats. Net Tonnage. MO fete n tenia can tek oristeominsties deat cnet 152 56,488.32 MOOSE sees ss sce atees mene chonescaeensctte tees oes 222 IOI, 102.87 DOGO reremen cae ress acu cease seme naann sone reac 225 107,080.30 BOO riecdnere atived. salaveheeat ware caveats cdvaan 218 108,515.00 MSO lisect eee etemis cee sieceti seeemcnaceiiene san 204 111,856.45 AO tallies orehwe dececene Stacso cuss ts seleigie 1,021 485,042.94 St. Mary's Falls and Suez canal traffic: Number of boats through St. Mary's Falls canal in 1890, 228 days of navigation, 10,557; tonnage, net registered, 8,454,435. Number of boats through Suez canal during 1890, full year, 3,389; tonnage, net registered, 6,890,014. Number of boats through St. Mary's Falls canal in 1891, 225 days of navigation, 10,191; ton- nage, net registered, 8,400,685. Number of boats through Suez canal dur- ing 1891, full year, 4,207; tonnage, net registered, 8,698,777. Entered at Cleveland Post Office as Second-class Mail Matter. GREAT significance is attached to the proposed formation of a society of naval architects and marine engineers in this coun- try. The increasing importance of American ship building in- terests and the development of the navy has at last prompted a movement toward the formation of such a society, and there is little doubt that preliminary steps already taken will result in success. The plan of the promoters of the association is to hold the first meeting in New York next spring at the time of the naval review, and fifty or more of the most prominent and influ- ential men in the ship building and shipping interests have ac- cepted invitations to be present. The list of acceptances in- cludes a number of naval officers connected with the departments of construction and covers leading ship builders in all parts of the country. 'The committee of organization consists of William H. Webb of New York; Louis Nixon, general manager of Cramp's Ship Building Company of Philadelphia; Col. A. E. Stevens of Hoboken; Francis T. Bowles, naval constructor United States navy, and Clement A. Griscom, president of the International Navigation Company. Mr. Griscom is president of the preliminary organization and W. L. Cappa, secretary and treasurer. 'The names mentioned in connection with the work of organization are' enough to secure success to the society, which may be expected to exert a great influence in promoting the art of ship building. AT Owen Sound, Ont., on Saturday last there was launched by the Polson Iron Works for the Canadian government another revenue cutter similar to the Constance and Curlew, boats built recently at the same place. Some eastern newspapers, notably the New York Times, again make this occurrance the basis for a great deal of sensational talk about the practicability of con- verting lake freight steamers into war vessels. 'The two car ferries for service on Lake Michigan, which have just been com- rca pleted at Toledo, are picked upon as suitable craft to be con- verted into harbor defense rams. It is said that the navy de- partment has had these ferry boats inspected and has pronounced them aswell designed for harbor defense rams as if they had been originally intended for that purpose. This may all be true, but it is not probable that the building of a small reverts cutter in Canada for the protection of lake fisheries will cause anxiety among the people of lake cities on this side of the border who are acquainted with the difficulties that would attend an effort to get even a few of the smaller class of British war ships to the lakes, and who understand the capacity of the present equip- ment in lake ship and engine building plants. An article in this issue of the REVIEW from W. F. Durand, principal of the School of Marine Engineering and Naval Archi- tecture, Sibley College, Cornell University, will prove highly interesting to designers of lake steamers and their machinery, as well as thinking engineers aboard these vessels who are seeking advancement in their calling. 'The author, who is an eminent authority, and who has had years of practical experience, dis- cusses some considerations bearing on the determination of the general dimensions of an engine to develop a given power. The article will prove especially interesting to engineers connected with lake ship and engine plants who are ardent supporters of the tendency toward higher pressure steam, which tendency is at present limited by the boilers for its production rather than by the engines for its use. Ata future time, a few of the more important details along the line of this article will probably be presented. I'? MAY BE interesting to vessel owners as well as admiralty lawyers to note that in future there will be only two courts for the hearing of admiralty cases. The recent act of congress establishing the United States court of appeals gave to that court final jurisdiction in admiralty, and Judge Taft of the Unit- ed States circuit court announced, when in Cleveland a few days ago, that in future the circuit court will simply enter up, with- 'out any hearing, decrees in all admiralty cases affirming the finding of the district judges. Performance of Quadruple Expansion Engines. Following is some data relative to the performance of the -- tug El Toro, having a quadruple expansion engine designed by Horace See, naval architect of New York city. The cylinders are 934, 13%, 1834 and 26 inches by 22 inches stroke of piston; steam pressure 180 pounds. 'The boat belongs to the Morgan line of the Southern Pacific Company. She is engaged in New York harbor handling their ships, lighters, etc. When not so engaged, is on fire duty. The full pressure of steam is on the boiler for the entire twenty-four hours. 'The work done during the year ending Sept. 30, 1892, was as follows: Steamships towed from Company's piers to Erie basin, or, distance,equal thereto, .65 0.2 <5-- qs 5s dies 5: soe eee 51 Steamships towed from pier No. 37 tO 25....:..t-0+cssseeers eres 119 Steamships docked at piers Nos. 37 and 25.......c0seeceesereeeees re Lighters towed and moored. :..5./0:.40... vcs. setae 334 Miles.tun. without tow-..i..--)ssesce-cn+seeeceee sce -c 2791 Remaining time on fire, duty -...- b> -.-05+-04e.<4 eee aaa DaysS-Anmi COMMISSION. £20605 Saecxiewadse oS dees hd eee 361 Coal consumed per day i.ts..c..0iiecetccscseeneec cass ull anneal agian The engine in addition to being economical in fuel, is also economical in space occupied. There are about eighteen large concerns engaged in river and harbor work in all parts of the lakes and it is more than probable that every one of them will submit bids on portions of the 20-foot channel work, to be considered by Gen. Poe of Detroit during eight days, beginning with Dec. 9.