_Commerce._--Large vessels can enter only four harbors, viz., Savannah, Darien, Brunswick, and St. Mary’s. The inlets or sounds which divide the coast islands from each other or from the mainland are generally only navigable for small craft. At mean low tides the bar of the Savannah (Tybee entrance) has 19, the Altamaha 14, that of St. Simon’s sound (entrance to Brunswick) 17, and that of St. Mary’s river 14 feet of water. Savannah, Brunswick, and St. Mary’s are ports of entry. Cotton and lumber are the principal exports. Of the former 610,419 bales of Upland, and 11,309 of Sea-island were exported during the year ending September 2, 1878. The shipment of wool for the same time was 988,389 ℔. These figures should not be taken to represent the crop of the State. The ship-timber, boards, deals, clapboards, &c., are chiefly shipped from the other ports. About 100 vessels, of 22,000 tons burden, are employed in the foreign and coastwise trade. For the year ending December 31, 1878, the total tonnage of the port of Savannah was--entered, 280,995 tons foreign and 385,532 coastwise; cleared, 223,885 foreign and 418,958 coastwise; value of imports $505,596, and of exports $24,014,535. In the district of Brunswick and Darien the entries were 124,711 and the clearances 32,579 tons; value of exports $1,030,943. The St. Mary’s entries were 16,052 tons foreign and 20,065 coastwise; value of exports $120,186, and of imports $1,421. _Railways._--Atlanta, Columbus, Macon, Albany, and Augusta are railway centres. In 1860 there were in Georgia 1,404 miles of completed railway; in 1878 there were 2,340 miles. The Atlantic and Gulf Railway crosses the State from Savannah to Bainbridge, in the extreme south-west, on the Flint river. It is 236 miles long, passing through Blackshear, Valdosta, and Thomasville (from which there is a branch line to Albany--58 miles--and Macon), while from Dupont there is a junction with the Florida lines. The Brunswick and Albany also extends from the coast at Brunswick to Albany, 172 miles, whence it is to be continued in a westerly direction to the Chattahoochee, in Early county. A third line connects Brunswick with Macon (187 miles); and another, the Central Georgia, unites Savannah with Macon and Atlanta (294 miles). The Central Georgia works a branch-line from Millen to Augusta; the Milledgeville and Eatonton from Gordon to Eatonton (22 miles); the South-Western from Macon to Eufaula, Ala. (144 miles), with branches from Fort Valley to Columbus (72 miles), Smithville to Albany (23½ miles), Cuthbert to Fort Gaines (20 miles), Fort Valley to Perry (13 miles), and Albany to Arlington (36 miles); the Macon and Western from Macon to Atlanta; and the Upson County line from Barnesville to Thomaston (16 miles).