Exports of Whale Oil from New Bedford in 1850.

To Hamburg, .

130,721

236,029

2,407,150

49,617 gallons.

Cowes and a market,

Exports of Sperm and Whale Oil from Boston in 1850.

Statement of the prices of Sperm and Whale Oil and Whalebone on the first and fifteenth of each month of the year 1850, together with the average price per year for ten years past.

RAILROADS IN UNITED STATES.

Ar the beginning of the year the number of Railroads in operation in the United States, was 263, measuring 11,565 miles in length, and constructed at an estimated cost of over $350,000,000. The number of Railroads in course of construction was 74, measuring 11,228 miles. Total number of Railroads 337, and total number of miles in operation, and in course of construction, 22,893.

It will be seen by a subsequent table that there are in Great Britain 6,624 miles of railroad in operation, and 5,382 miles in the course of construction. Therefore when all the railroads authorized and constructing in the United States and Great Britain shall be completed, the number of miles in the two countries will equal 34,799 miles, a greater length than would completely surround the globe.

PUBLIC LANDS OF THE UNITED STATES.

(FROM THE OFFICIAL REPORT OF THE COMMISSIONERS OF THE GENERAL LAND OFFICE.)

THE following table shows the area of each State, the number of acres surveyed, and the number remaining unsurveyed

THE lumber trade of Canada with the United States is rapidly extending. Messrs. Forsyth & Bell state, in their circular, that this has been to such an amount as to render it precarious for England to depend upon Canada for the future. The following table shows the extent of this trade from one port alone. Lake Champlain received from the port of St. Johns, as follows:

SHIPBUILDING IN THE UNITED STATES.

THE following table sets forth the number and class of vessels built, and the tonnage thereof, in each state and territory of the United States, for the year ending June 30, 1850. It will be seen that MAINE heads the list,-326 vessels having been built there during the past year:

THERE are already in the United States and Canada, more than 12,000 miles of wire, involving a capital of more than $3,000,000. To work these lines, costs annually 720 tons of zinc worth $57,600, more than a million pounds of nitric acid worth $117,800, and $27,000 worth of mercury, besides a considerable value in sulphuric acid, &c.

VOL. VI.

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