The Erie Mail arrives on Monday evening and closes the same day at sun-set. The Steubenville Mail arrives on Sunday and Wednesday evenings, and closes same days at sun-set. The Huntingdon Mail, via Ebensburgh and Indiana, arrives on Tuesday, and closes same day at half past twelve P.M.... As there are several places of the same name in the United States, it is necessary that the directions should be particular, the states should be distinguished, and, where it might otherwise be doubtful, the counties.... Those who send letters may either pay the postage in advance, or leave it to be paid by their correspondents. RATES OF POSTAGE For Single Letters Cents For any distance not exceeding 40 miles 12 Over 40 and not exceeding 90 do 15 Over 90 and not exceeding 150 do 18-3/4 Over 150 and not exceeding 300 do 25-1/2 Over 500 37-1/2 _Pittsburgh directory, 1815._ The Suburbs "_Birmingham_ is a small village across the Monongahela, about one mile south of Pittsburgh. It has works for green glass, furnaces for casting hollow ware, &c. from pigs, and a saw mill, which is moved by a steam engine. The coal for all these, is used fresh from the mine, without mixture, coaking or desulphuration. Many of the balls for Perry's fleet, were cast in this foundery. But instead of forming such ministers of havoc, the metal is now moulded for softer hands, and _flat_ or _smoothing_ irons are produced in abundance. These are ground on a stone which revolves by a band from the steam engine." _Thomas's Travels through the western country in 1816._ "At a respectable meeting of the inhabitants of Birmingham and its vicinity, convened at the school-house, on Friday evening the 28th of March, 1816, in order to take into consideration the expediency of erecting a Market-House, in said town; Nathaniel Bedford, was called to the Chair, and George Patterson, appointed secretary. The chairman having stated the object of the meeting, the following resolutions were proposed and unanimously adopted, viz.-- RESOLVED, That a Market-House be built on the plan exhibited by Mr. Benjamin Yoe. RESOLVED, That the site of the structure be the centre of the square. Thus, another thriving and Manufacturing Town, is added to the many which have been established in the western section of Pennsylvania; and social order, with its concomitants, the arts and sciences, illuminate those wild and dreary shades, where lately none but the prowling wolf, or the restless and cruel savage held their haunts." _Mercury, April 20, 1816._