The houses in Savannah are, for the most part, built of wood, and stand at a little distance from each other. In two or three of the streets, however, they are close together, and many of them are built with brick: these contain the shops and stores. The principal street is that called the Bay; and in this there are several good houses, of brick and wood. It extends nearly three quarters of a mile in length; and opposite to it is a beautiful walk, planted with a double row of trees. Similar trees are planted in other parts of the town. This agreeable promenade is near the margin of the height, upon which the town stands; and the merchants' stores, warehouses, and wharfs, for the landing, housing, and shipping of goods, are immediately below. From the height there is a fine view of the Savannah river, as far as the sea; and, in a contrary direction, to the distance of several miles above the town. About the centre of the walk, and just on the verge of the cliff, stands the Exchange, a large brick building, which contains some public offices; and an assembly-room, where a concert and ball are held every fortnight, during the winter. The situation of Savannah, and the plan upon which it is laid out, if the town contained better houses, would render it far more agreeable, as a place of residence, than Charleston. Its greater elevation must also be more conducive to the health of the inhabitants, than the low and flat site of the other city. Both, however, are in the neighbourhood of swamps, marshes, and thick woods, which engender diseases, injurious to the constitution of white people. On the swamps, around Savannah, great quantities of rice are grown. Twelfth Day's Instruction. UNITED STATES CONTINUED. _Narrative of an excursion from Charleston into Georgia and West Florida. From Travels in North America, by_ WILLIAM BARTRAM. At the request of Dr. Fothergill, an eminent physician in London, Mr. Bartram went to North America, for the purpose, chiefly, of collecting, in Florida, Carolina, and Georgia, some of the rare and useful productions which had been described, by preceding travellers, to abound in those states. He left England in the month of April, 1773, and continued abroad several years. In 1776, he was at _Charleston_; and on the 22d of April, in that year, he set off on horseback, intending to make an excursion into the country of the Cherokee Indians. He directed his course towards Augusta, a town on the Savannah river.