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THERE MARINE RECORD. ACROSS THE LINE. Special Correspondence to The Marine Record. Torowto, CaN.—So there is a discrimination between saloon or steerage passengers with regard to vaccination ! Dr. Landerkin, in the Canadian House of Commons at Ot- tawa, asked the Government if the system of vaccination pursued in the past would be carried out in the future. Saloon or intermediate passengers, the doctor understood, were not vaccinated, whilst steerage travellers were compelled to undergo the ordeal. The Government said the reason why saloon passengers were not inoculated was because the United States did not insist upon it, and the enforcement of such a regulation in Canadu would drive trafic from Canadian.to American vessels on the transatlantic route. While considering the railways and canals estimates in the House at Ottawa, the new Soulanges canal, which will paral- lel the Beauharnois canal on the River St. Lawrence, came up for discussion, Mr. Haggurt, Minister of Railways and Canals, explained that the estimated cost of the work was $4,750,000, the amount expended $11,304, and that two con- tracts had been awarded, one to O’Brien & Co., of Montreal, and one to Goodwin, of Ottawa. Some opposition members regarded the expenditure as enormous and unnecessary, con- sidering the financial condition of the country. Mr. Haggard said that the new canal could be built for about $1,000,000 Jess than it would cost to deepen the Beauharnois Canal. Mr. Gibson agreed with the Minister that it would be cheaper for the Government to construct a new canal than to improve the old one. Mr. Scriver disapproved of the determination of the Government to build the new canal, and said it was viewed with great dissatisfaction by the people on the svuth side of the St. Lawrence River, where the Beauharnois Canal was located. The item passed. Mr. Haggar', speaking at the House of Commons, in reply to Sir Richard Cartwright, said that the Canal system from Lake Superior to Montreal would cost in all $43,020,000, of which $27,465,000 had been expend d. The completion of the canals would require un expenditure of $15,000,000. In answer to an expressed desire for information by Sir Richard Cartwright, the Minister stated that a vote of $74,000 for the Trent Valley Canal was intended for a lock and other im— provements between Lakefield and Balsam Lake. The recently reported action of President Harrison, re, the charging of tolls to Canadian craft passing through the Sault Ste. Marie Canal, is not causing so muzh comment as might have been expected. There is considered to be ample justifi- cation for the step on the part of the United States Govern— ment, but it will not much hurt the general Canadian marine interest. Those vessels which will suffer most are the craft of the Cenadian Pacific Railway; and the consensus of opinion among vesselmen seems to be: “We are delighted to see such an arrogant monopoly eatch it!?’ The low water is still causing much trouble at this port. A large quantity of timber has been, and is being shipped, but vessels have to get outside the harbor to finish loading, thus furnishing work for the tug Frank Jackman, which has been engaged to tow out the deals. Incoming vessels have to care- fully avoid loading to a deeper draught than ten feet, other- wise they cannot enter. The harbor commissioners collect their tolls all the same. Jj, kG rr et AURORA’S, M, A. Veeder, writing to the editor of the ‘Scientific American,” from Lyons, N. Y., states that there was « bright aurora on the night of Saturday, April 23d. This display is of special interest, because it is the sixth successive recur. rence at the precise interval of twenty-seven days, the dates being as follows: December 9, January 5, February 2, Feb- ruary 29, March 27, April 23. This period corresponds to the time of a revolution of the sun as viewed from the earth, or, ia other words, a synodic revolution, Upon each of these dates, also, there was at the sun’s eastern limb a disturbed area located south of the equator appearing by rotation. In like manner a record now before me shows that disturbed areas in the sun’s northern hemisphere are attended by the appearance of the aurora when coming into view by rotation, but that this is the case-in the autumo months instead of the spring. Now, in the autumn the north pole of the sun is in- lined toward the earth and in the spring the south pole is thus inclined and the sun spots are invariabiy located within tfe limits of a narrow belt on each side of the sun’s equator and at comparatively a short distance from it. Thus it ap- p2ars that, in order that a solar disturbance may have its full effect apon the magnetism of the earth and produce an aurora, it must be in a particular location, namely, at the eastern limb, snd as near as possible to the plane of the earth’s orbit. er TRAFFIC THROUGH ST. MARY’S FALLS CANAL, The following is the statement of traffic through the St Mary’s Falls Canai, Mich., for the opening month of April, and represents only x few days of navigation. Eastbound— Flour 67,250 barrels, corn 31,000 bushels, wheat 2,042,114, bushels iron ore 19,485 tons, lumber 1,563 M. feet, unclassified fre’ght 3,778. Westbound—Coal 151,495 tons, munufactured iron 119 tons, salt 17,842 barsels, unclassified freight 8,214 tons. Eastbound freight—net tons 94,473. Westbound freight—net tons 162,504, Total 256,977. A CANADIAN VIEW. Orrawa, Onv.—A section of the Canadion press js alarmed at the proposed message of President Harrison recommending discrimination against Ca- nadian vessels passing through the Sault Ste, Marie Canal on the Michigan side. In view of the alleged treatment accorded American crafts traversing the Canadian canals, Canadian vesrel-owners are also sharing in the alarm, and the Ottawa authorities haye been urged to hurry to completion the canal now under construction at Sault Ste. Marie in Can- adian territory. Unfortunately, however, for Canada, the Soo Canal will not be completed until 1894. It will cost nearly $4.000,000, In the meantime Canada’s vast shipping trede from Lake Superior ports, like Fort William and Port Arihur, is at the mercy of the United States Execuiive. This situation is all the more embarassing as the Canadian railways have been qnite unequal to the task of handling the Man- itoba and Northwest graiu crop. The proposed discrimination againet Canada is regarded in official circles as very unjust and ns a violation of the treaty of Washington, If the Ot- tawa authorities have equally violated ils provis- ions in the matter of the St. Lawrence canals, grant- ing American vessels privil: ges in theory, but re- fusing them in point of fact, the same blame, it is asserted, attaches to the United States, Under the order in Council passed the other day by the Canadian Government at the solicitation of ship owners, it is provided that vessels passing through the Welland canal shall pay the regular rate of 20 conts a ton on the grain they carry, whereas those proceeding to Montreal through the St. Law- rence canals shall receive a rebate of 18 cents a ton. The arrangement applies equally to United States and to Canadian vessels. The American vessal, equally with the Canadian vessel that passes to Montreal receives the rebate. The Canadian vessel equally with the American yessel that goes no fur- ther than Lake Ontario receives no rebate. According to the American view, however the system discriminates against American’ shipping, for it taxes vessels which unload their grain at Ogdensburg 18 cents higher than vessels which continue the journey to Montreal. Montreal isthus favored at the expense of the New York lake or river ports. President Harrison’s scheme of retaliation is not new. It was first suggested by the Inters'ate Com- merce Commission. That body declared that the St. Lawrence Canal rebate was a violation of the canal clauses of the treaty of Washington, and rec- ommended that, as a measure of justice, the Soo Canal should no longer be free to Canadian yessels, That the Canadian arrangement is a violation of treaty rights isa charge open to question, The treaty of Washinfiton specifies that Canadian and United States vessels shall be treated alike by Can- ada in respect of canal toils. It also stipulates that the United States Government shall use its influence with the various States to induce them to extend to Canadian vessels equal rights upon the American canals, the Erie, for example. (Corcluded on page seven.) A NEW ELECTRIC SEARCH LIGHT, E GIVE BELOW DESORIPrION and illustrations of the new ‘‘D’’ type search light projector, recently designed by the Edison General Electric Co, One illustra- tion shows the side and front view, and the other the lamp mechanism, which will give a good idea of the general style of this projector. The lamp is ‘esigned to run on an ireandescent circuit with a potential of 50 to 55 volts, at which it requires about 15 amperes of current and gives a light of 3,000 ce. p. placed in series with the lamp to permit its adjust- ment to the potential of different circuits upon which it may be used. ‘Thelampfis both self r g ulating and self focusing. The lower carb n is pressed upwards against fixed stops by a spiral spring, thus maintaining the are in the focus of the reflector, A hand adjustment is provided for rais— ing and lowering these stops, by which the verticul position of the are can be altered. The upper car- bon falls by gravity, its de: ceat being perfectly reg u ated by the lamp mechan.sm, so that great steadiness of light is obtained. The negative ear bon being placed a little back of the live of the positive curbon, a crater it thus formed on the side of the latter and nearly all the light is thrown to ward the reflector. A ventilating hood on the top of the drum provides an escape for the heat. The drum is of iron and 18 inches in diameter, A highly polished silver plated parabolic reflector 17 inches in diameter, with 5inch focus is mounted at one end of the drum ona finely threaded screw piece, by which it can be moved to or from the arc. By this means the light can be concentrated ina nurrow beam or be widely diverged. The usual focus in projectors of this class is from 2 inches to 3 inches, and considerable advantage is derived by the increase in focus obtained in this projector. A fine hole is drilled through the screw piece on which the reflector 1s mounted, through which the exact position of the are is shown on a smull piece of ground glass. The drum is provided with vertical and horizon- tal adjustments, ‘The vertical adjustment is effected by means of a hand wheel operating a double A suitable r.sistance is threaded screw. It has a vertical movement of thirty degrees, 15 degrees, 15 degrees below the horizontal line, which is snfficient for ordina) The horizontal adjustment permits a complete revolution ok upon its base, so that the light can be readily thrown toward any the compass. By means of a clamp screw the drum can be Auigkly in any positic n. ‘ Provision is made for a card attachment in order that the proj be operated from a distance if preferred, as for instance from: the house, when the projector is set at the bow or any other part of a) The connecting terminals for the am laced ite the drum, the conduct: Fe ordught ap te eae” witout rs es Heke sore oe fa be brought up in the form . The height of the projector is 48} inches and the center of the: is 36 inches above the bottom of ; foe ane nee 22 inches in dinaeiae of Ne he 2a ss is projector is simple, strong and substantial, ) been arranged with a view to mania ofholent andl bos . i ee in clear weather the beam of light will hayvean o ead yards, The compactness of the entire apparatus ren jally advantageous for use on vessels, wharfs, etc. 3