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troit river tonnage. ae registéred tonnage. Assuming this fatio' for the commerce of Detroit river the actual freight would be 63,808,571 tons of 2,000 Ibs. each. The commerce using the St. Clair Flats canal is less than that of the Detroit river. It is found from the customs house records that 2,581,488 net registered tons that used the Detroit river do not go through the canal but turn around and go back down the river. This should be subtracted from the De- There is a_ small amount of business done at Lake St. Clair ports which does not go through the Detroit river, of which we have no actual record, but which is estimated by the custodian to aggregate 25,000 net reg- istered tons during the season. This should be added, to the Detroit river ton- nage. Making the correctiors, the com- merce using the St. Clair Flats canal during the season of 1906,-is found to be 48,117,409 net registered tons, or -60,- 589,441 actual. freight tons. The value of the freight passing. St. Marys,.Falls canal during the season of 19 ~ was found to be $10.39 per ton. Assuming this unit value for the Detroit river com- merce, then the total value of actual freight passing Detroit river during 'the season of 1906 would be $662,971,053. The commerce passing Detroit river has now been determined with accuracy for five consecutive years as follows: noe SINet Year. No. of Registered Actual 'Passages Tons Freight Value 1902.. 33,000 39,328,689 44,260,506 $440,834,640 1903.. 33,113 37,453,796 46,817,245 _ 471,917,830 1904.. 29,472 33,049,984 42,792,326 453,598,656 1905.: 35,599 45,912,622 55,508,360 522,888,751 1906.. 35,128 50,673,897 63,808,571 662,971,053 "The actual freight is 4,761,275 tons greater than in 1905. The number of vessel passages has decreased 410. There were 881 steam vessels that used the Detroit river during the season of 1906, of these there were 776, the regis- tered tonnage of which exceeded 100 tons. The average tonnage of these 776 large steam vessels was 1896 net registered tons. There were 276 sail "vessels having-a tonnage greater than 100 tons. Their average tonnage was 921 tons. GENERAL SUMMARY FOR DETROIT RIVER. Total net registered tons. ........ 50,673,897 Netaal. treight carried < o...0oe 63,808,571 Valuation placed on freignt...... $662,971,053 Total number. of vessels. ..\...... 175 Number of American vessels..... 1,061 Number of Canadian vessels..... 114 Number of steam vessels......... 881 Number: of -sail vessels...) 0.. 294 Valuation of steam vessels...... . $97,870,000 Valuation of sail vessels......... $8,353,000 Total valuation of vessels........ $106,223,000 STi< CLAIR FLATS: CANAL. Total net registered tons........ 48,117,409 Actual freieht. 63.550 6 ee ke re 60,589,441 Repairs on the steamer R. L. Ireland of the Gilchrist fleet which was wrecked on Lake Superior last fall have been completed at Superior. company. Tae MarRINE REVIEW NEW-STEAMER CITY OF CLEVE- LAND DESTROYED. 'The news that the new steamer City of Cleveland had burned at her dock early Monday 'mofning- was received with general regret along the chain of the beautiful decorations of the cabins. All this has been destroyed. ca The cause'of the fire is a mystery. The steamer was lying at the Orleans street yard of the Detroit Ship Building Co: The yard itself was guarded by STERN VIEW OF THE BURNED STEAMER CITY * OF CLEVELAND. lakes, not alone among those interested in lake trade, but by the community in general. Regret was spontaneously ex- pressed on all sides, Expressions of sympathy were many, both for the ship building company and the steamship Not alone had a good ship been destroyed, but valuable time had watchmen and in addition two watchmen patroled the boat. They reported regu- larly by the alarm system and passed the identical part of the boat where the fire was first discovered, the port paddle box, a little while before the flames broke' out. There was no fire on the boat, and smoking was not allowed. It BOW VIEW OF THE BURNED STEAMER CITY OF CLEVELAND, been irrevocably lost. The new steamer was to have gone into commission on June 30, and everything was aboard ex- cept carpets and furniture. The joiner work was pfactically complete, including has been suggested that the temporary wiring was defective. The ship building company is now making rigid investiga- tion of all possible causes. The photographs accompanying _ this