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ces," ie. two hundred feet from each end of the lock. By this table it will be seen that the average is 64 minutes.

Table No. 2 shows the actual time consumed by each boat from its entrance into to passage out of the lock. Time taken from the moment stern of boat crossed line of gates in entering till it passed line of gates in leaving. Only fifty-six boats were so timed, but the observations were sufficient for the purpose of arriving at an average of the time consumed by a boat in the lock. The average is 5 minutes.

The general average for the twenty-four hours is-(1440 minutes÷ 198 boats, =) 718 minutes. The average for the first twelve hours is (720 minutes-÷114 boats, =) 6% minutes.

Of the 198 boats passed, 104 were eastward bound, with an aggregate freightage of 19,716 tons. 94 were westward bound, with an aggregate freightage of 3,131 tons. The average tonnage for eastward bound boats is (19,716÷÷104) 189. The average tonnage of westward bound boats is 3,131÷94) 33.

The Hon. E. S. Prosser of the canal committee, witnessed the tests and examinations as made, and which were intended to be such as should clearly and correctly exhibit the working capacity of the lock. The result of the trial is herewith appended in detail. Respectfully submitted,

S. T. HAYT, Canal Commissioner.

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TABLE No. 1.

MEMORANDUM of test to determine the actual working capacity of Lock No. 49, Erie Canal, for Constitu tional Convention, made September 17th, 1867, under the direction of Stephen T. Hayt, Canal Commissioner.

CARGO IN TONS.

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Going West.

H.

M. S.

II. M. S.

M. 8.

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