a September, 1912 plenty of business for everyone. This is indeed in strange contrast to the experiences of the past three years when vessels had to go into vol- untary retirement.early in the year and some in fact were not oper- ated at all during the entire season. A contributing reason has been the continued thick weather. Practically the whole of August.was one of fog and all vessels were delayed. As an offset to this is the incredible efficiency of the unloading machine. When _ 10,600 tons can be taken out of the hold of a steamer in less than three hours and loaded into cars, dispatch may be said to have reached its maximum, but as a matter of fact,' records are being broken all the time. - @ Commerce of Lake Superior The commerce of Lake Superior for August as measured by the canals at Sault Ste. Marie was the heaviest of the year, reaching 10,852,852 tons as against 10,781,504 tons for July and 10,747,159 tons for June. The move- ment to Sept. 1 of the present year totals 41,484,926, as against 31,488,323 for 1911, and 40,046,800 for 1910, a gain of 1,438,126 tons over the record movement of 1910. Following is the summary: East Bound. To Sept. To Sept. Tt9td, 11912. Copper;: net' tons: ::.'.-6 <é 71,078 60,772 Grain, other than wheat bushels.) Guta ae 18,418,257 25,046,811 Building stone, net tons 4,137 3282 Mionr barrels) acces es 3,454,630 4,029,959 Iron ore, net tons...., 18,683,240 27,749,944 Pie iron, met tons: .: 4. 17,784 11,974 umber, Mott Bis. . 328,329 387,691 Wheat, bushels-: .. 60... 34,078,649. 69,866,933 Unclassified . freight, net TONS OH aii os 2 79,453 128,196 Passengers, number ... 30,276 25,264 West Bound. Coal, anthracite, net tons 1,226,515 926,926 Coal, bituminous, net tons 8,116,034 8,063,994 Plour,; barrels 4 e243 125 eee ee eee Grain, bushels ..4gi20 3 1,100 100 Manufactured iron, net StONS 4.6 Gol ee 242,900 366,989 Tron, ore, net tons. >... 12,622 3,188 Salt, barrels 3403, oe 382,826 - 405,742 Unclassified freight, net CONS Co ee ne eee 732,632 748,628 Passengers, number .... 395130 .%: 27,533 Summary of Total Movement. East bound, net tons 21,100,586 315315,627. West bound, net tons 10,387,737 10,169,299 Motals 453233. Seb 31,488,323 41,484,926 The total number of passages to Sept. 1, 1912, was 13,339, and the net registered ton- nage, 32,896,057. Goa i August Ore Shipments Ore shipments during August amounted to 7,760,248 gross tons, the highest record of the year, and mak- ing the third month in which the 7,000,- 000-ton mark has been exceeded. Dur- ing June last the fleet moved 7,600,- 283 tons, in July 7,567,555 tons, and as stated, in August 7,760,248 tons. This movement was carried practical- ly in contract ships, though the ore shippers would have been glad to THE MARINE REVIEW charter more wild tonnage, if pos- sible. However, the grain trade has been so attractive that there is little outside tonnage {to be had. Fhe movement to. Sept. 1, ts .29,051 a. tons as against 19,606,068 tons to Sept. 1, 1911, an increase of 9,445,084 tons. The August movement marks the passing of the 1910 record when up to Sept. 1,. 28,827,029 tons were moved during that: year. The in crease. over 1910 to Sept. I is there- fore 224,123 tons. Following is the summary by ports: August, August, 'Port 1911. 1OTZ. ESCanaba tice ee ewes 706,445 LOLA UL Marquette: (ore, sug Coes 357,571 570,586 Ashilande: Seseiie:: Wey erent 407,578 761.539 SUDEHOM ee ae ee 156895952, 2,397,530 Oath, Or ee iss cee 1,211,667 1,690,650 Two Harbors): ¢isnses%. 1,175,098.% 15,578,221 Otay Sueur a eee vendie 5,548,311 7,760.248 1912 incredse:.47.5.4% 2,201,937 To Sept. 1, To Sept. 1, Port. ibs 1912. Hscanabat cio ee. 2,418,251 3,240,011. Marquette: . si6a sos ss 1,200,748 2,031,400 Ashland Oy eeu 4 is een, 1,509,841 2,865,397 SUpeMOn ae aoe aces 6,382,273 9,066,190 PAE seo eee oes ne 4,370,117 6,076,452 wor arbors 2. seek 3,724,838 5,801,702 Dota es ia ee ew se, 19,606,068 29,051,152 TOL increase 23 6 vse hss 9,445,084 Lake Ore Receipts : Out of total ore shipments of 7,760,- 248 grosstons during August, Lake Erie ports received 6,075,673 tons, distributed as follows: a Port. Gross tons, . Buffalo 802,367 Erie.) Se wins See anes See eee yg 02 274 var Conneaut ous. (1303,982 Ashtabula . 1,305,840 Fairport 375,373 Cleveland 1,291,831 PIG EAI Ui oa pote ose phanarney ears 637,388 Fharon cee aie ie cia aso eat ex 78,100 Sandusky. 3. Siw ok sete uea apeate Leora EOledO. eae ee WS dices eateries ~ 141,145 DEtrOlt Oh ea eee ee eee crete 77,373 "Rotal | se a cies ara ele eee 6,075,673 Floating Dry Dock at Toronto The Polson Dry Dock & Shipbuild- ing Co. Ltd. of Toronto, has begun the construction of the first steel float- ing dry dock built in Canada. The dock will be located at the foot of Sherbourne street, and will be of the sectional "U" type, and was designed by William Newman, works manager. The plans have been approved by the Canadian government, by which the work 1s liberally subsidized. The dock is to be 330 ft. long by 100 ft. wide and 35 ft. 4 in. deep, and 72 ft. wide on deck, 88 ft. wide on tcp with § ft. 6 in. depth of hold, to tbe built in two sections of equal heights, weighing approximately 2,400 tons with a lifting capacity of 4,400 tons. The pumping equipment con- sists of twelve 12-ft. centrifugal pumps with a capacity of 42,000 gallons per minute, in batteries of three in each 313 quarter of the dock, each battery driven by a 75-H. P. direct-connected motor and all pumps controlled from a central station ashore. The con- struction of the pumping equipment consists of one longitudinal water- tight bulkhead amidships and a trans- verse water-tight bulkhead every 50 ft., dividing the dockinto twelve com- partments each 50 ft. square with a pump in each. The discharge and flooding of the dock is all through one valve at each pump. Germans on the Titanic Disaster Cable dispatches announce that the commanders of German trans-Atlantic liners practically all agree that under similar circumstances with those obtain- ing at the time of the Titanic disaster they would not have reduced speed. They maintain that with a proper look- out. there would be ample time to avoid a collision with ice. The German view is that Capt. Smith's lookout failed him. The steamer William A. Rogers of the Niagara Transit Co.'s fleet was in collision with Standard Oil Co.'s barge No. 96 off Whitefish Point on Sept. 2 during a dense fog. The barge was being towed by the tug Security when the Rogers crossed the tow line, caus- ing the barge to take a sheer into her. The Rogers. returned to the Sault for an examination where it. was. found that her bow' had been crushed in almost to the collision bulkhead. Her stern is also twisted and it will take about three weeks to repair her. She is now in dry dock at Superior. The Montreal Transportation Co. through John Reid & Co. of Montreal have placed contract with Swan, Hun- ter & Wigham Richardson for a steam- er for service on the great lakes to be. electrically: driven, She will. be equipped with internal combustion oil engines connected to dynamos and the electric power thus generated will be transmitted through motors to the shaft. The Homestead Valve Manufactur- ing Co., Homestead, Pa., recently is- sued catalog and price list of their complete line of valves. The catalog is very instructive, giving description of the various types of valves illus- trated with sectional views. _. The Kenyon Searchlight Co., form- erly. of Bedford, O., has reorganized with offices at Detroit, Mich. Its fa- cilities are largely increased and it is now in position to meet all re- quirements for all styles of portable searchlights. «