Coast Survey Operations in the Vicinity of New-York.

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COAST SURVEY OPERATIONS IN THE VICINITY OF NEW-YORK. Communicated by A. D. BACHE, Esq., Superintendent of the United States Coast Survey.

TOPOGRAPHY AND HYDROGRAPHY OF HUDSON RIVER.

THE regular survey of the Hudson River has been advanced in two localities by a party in charge of sub-assistant JOHN MECHAN. From a point one mile south of Anthony's Nose, upwards to SHERMAN'S wharf, above Newburgh, the shore line was accurately traced for two hydrographic sheets of last year, which contain the soundings executed by Lieut. Commanding FAUNTLEROY. After completing this duty, the party of Mr. MECHAN, in the schooner Gerdes, moved to Rhinebeck, where the shore line survey and hydrography were jointly resumed and extended to Tivoli. The work of this year is connected in that vicinity with a survey made in 1858, by Lieut. Commanding MURRAY.

A tide-gauge used in conjunction with the hydrographic operations was read every fifteen minutes, and showed a mean rise and fall of four

to six feet.

Within the limits of the sheet projected by Mr. MECHAN, he completely surveyed the shoals in the Hudson, known as "The Flats" and "Hog's Back," and also those immediately opposite to Tivoli. The following general statistics refer to the two localities in which the party worked:

For hydrographic purposes sub-assistant MECHAN determined two hundred and six points with the plane table. Mr. F. R. HASSLER aided in the field work on the Hudson, and accompanied Mr. MECHAN, after closing work in this section, on typographical duty in Fairfax County, Virginia.

Two plane-table sheets, containing the finished topography of the shores of the Hudson River above and below Yonkers, were inked during the winter by Mr. CLEVELAND ROCKWELL and deposited in the office. In February last, Lieut. Commanding FAUNTLEROY turned in at the office two hydrographic sheets containing the soundings made by his party in the Hudson River, between Newburgh and Poughkeepsie.

NOTE.-Owing to the completion of the physical survey of New-York bay and harbor, and the circumstances of the times, there has been less work executed by the coast survey in the section around New-York than during the last year. It was principally confined to office work of the surveys of the shores of the Hudson, and to topography and hydrography in the same river.

THE MANUFACTURING INDUSTRY OF THE U. 8.

STATISTICS OF PRODUCTS OF INDUSTRY PRODUCED IN THE UNITED STATES DURING THE YEAR ENDING JUNE 1, 1860.

$100,665,000

In Southern States, 18,026

Total,.....

$82,609,000 98,640 11,470 $ 145,350,000

128,300 $1,050,000,000 $1,012,000,000 1,100,000 285,000 $1,900,000,000

REPORT ON FIRE INSURANCE.

THE progress of the business of fire insurance, during the year 1861, has fully justified the views concerning that branch of business expressed in the reports of this Chamber for the years 1858 and 1859.

The constantly diminishing prices charged by our local companies for insuring, the large comparative increase of expense, and the reduced net remainder, after payment of losses and expenses, clearly indicate that the period is not remote when a number of companies in this city must necessarily cease insuring, and pay back to their stockholders the amount in hand; while those remaining will as certainly see the necessity of charging adequate rates of premium.

The results of the business for the year 1861 are exhibited in the following figures. In this State there are ninety-five (95) companies, having an average capital of $213,504 each, amounting, in the aggregate, to $20,282,860, divided as follows:

The aggregate amount of premium received, for the year 1861, was $6,827,736, being an average of $71,870 to each company. The actual receipts, however, vary greatly, the facts being as follow:

No. of companies receiving in premiums less than

The aggregate losses of the year have reached the sum of $3,771,209. The expenses paid during the year amount to the sum of $2,404,266; the expenses being an average, according to the gross amount of premium received, of 35 per cent.; but, according to the number of companies and expenses of each, the average expense is 42 per cent.