Boat building was carried on in Pittsburg at this time, but Collot advised travelers to buy their boats on the Monongahela, where the greater number were built as they would in that way be able to save much time and about one-third of the expense.[184] By the year 1802 the ship building industry had assumed importance in Pittsburg, one of the principal ship yards being upon the Monongahela The lumber being near at hand rendered the expense of building less than that in the Atlantic States. The cordage was manufactured at Redstone and Lexington, and sent also to Marietta and Louisville where ships were built.[185] In 1802 a three mast vessel of 150 tons and bin of 90 were launched at Pittsburg, and during the spring of 1803, three ships from 160 to 275 tons were launched.[186] The merchants living in or near Pittsburg were either the partners, or else the factors, belonging to the houses of Philadelphia.[187] Trading boats were sent out from Pittsburg to supply the settlements along the River.[188] Schultz, 1807, writes thus of Pittsburg, "There are probably between 60 and 70 stores, well stocked with every kind of goods. The price of wagon carriage from this distance, (Philadelphia and Baltimore), is $5 and $6 a hundred pounds weight. It contains between 400 and 500 houses. From the best information I could collect, it is supposed to contain at least 2500 inhabitants, the most of whom are German and Irish settlers from various parts of Pennsylvania and Maryland. This town has likewise a number of public buildings, principally built of brick. Ship building is carried on here with considerable spirit; they have already launched about one dozen brigs and schooners. Boat building, boat buying, and boat selling seem to be part of the business of at least half of the town. Pittsburg has likewise a considerable number of factories established already, among which may be enumerated distilleries, breweries, printing presses, an air furnace, a glass house and cotton factory; likewise, smaller establishments for the manufacture of nails, brushes, ropes, copperware, tinware, and earthenware, with many others too tedious to mention, Pittsburg appears to be in the "full tide of successful experiment."[189]