The natural advantages which allured New York's first population have been steadily developed and reinforced by artificial ones. For the ships of the world she has built about her water-front more than three hundred piers and bulkheads. Allowing berth-room for four ships in each bulkhead, and for one at the end of each pier, (decidedly an under-estimate, considering the extent of some of these structures,)--the island water-front already offers accommodation for the simultaneous landing of eight hundred first-class foreign cargoes. The docks of Brooklyn, Jersey City, and Hoboken may accommodate at least as many more. Something like a quarter of all New York imports go in the first instance to the bonded warehouse; and this part, not being wanted for immediate consumption within the metropolis proper, quite as conveniently occupies the Long Island or Jersey warehouses as those on the New York shore. The warehouses properly belonging to New York commerce--containing her property and living on her business--received during 1861 imports to the value of $41,811,664; during 1862, $46,939,451; and during 1863, $61,350,432. During the year 1861, the total imports of New York amounted to $161,684,499,--paying an aggregate of duties of $21,714,981. During the year 1862, the imports amounted to $172,486,453, and the duties to $52,254,318. During 1863, the imports reached a value of $184,016,350, the duties on which amounted to $58,885,853. For the same years the exports amounted respectively to $142,903,689, $216,416,070, and $219,256,203,--the rapid increase between 1861 and 1862 being no doubt partly stimulated by the disappearance of specie from circulation under the pressure of our unparalleled war-expenses, and the consequent necessity of substituting in foreign markets our home products for the ordinary basis of exchange. In 1861, 965 vessels entered New York from foreign ports, and 966 cleared for foreign ports. In 1862, the former class numbered 5,406, and the latter 5,014. In 1863, they were respectively 4,983 and 4,466. These statistics, from which the immense wharfage and warehouse accommodation of New York may be inferred, are exhibited to better advantage in the following tabular statement, kindly furnished by Mr. Ogden, First Auditor of the New York Custom-House. _Statistics of the Port of New York._