Nuttall, T., Travels, Early W. Travels, XIII., 41. "To judge of the inland commerce carried on betwixt Philadelphia and Pittsburg, a stranger has but to view this road at the present season. All day I have been brushing past wagons heavily loaded with merchandise, each drawn by five and six horses. [534] Welby, A., Visit, Early W. Travels, XII., 197. Niles, Weekly Register, XV., 267. "It has been estimated that three millions of dollars worth of goods were at Pittsburg on the 7th ult. (December, 1818) waiting for a rise of the waters, to descend the river, as well as a multitude of travelers and emigrants." [535] Nuttall, T., Travels, Early W. Travels, XIII., 38. [536] Ogden, G. W., Letters, Early W. Travels, XIX., 25. [537] Ibid., XIX., 27. Niles, Weekly Register, XXVII., 149. "The number of wagons loaded for Pittsburg, by a single house last year was upwards of 200; and the freight alone, at the present reduced rate, amounted to $24,000. (from Philadelphia). [538] Flint, T., Recollections, 17. Hall, J., Letters, 34. Agrees with Flint's statement of the causes of the decline. [539] Niles, Weekly Register, XXXII., 34. Ibid., XXXI., 165. "The river remains low. But the number of heavily laden keels which arrive and depart daily, show that the improvements in the channel have been such as to secure us an uninterrupted navigation from Pittsburg westward, at the very lowest stages of the water." Ibid., XXXIV., 411. "Pittsburg goes on prosperously. The happy union of the two arms of the American system will make her great, her manufactures and the location of the Pennsylvania Canal [540] Niles, Weekly Register, VI., 208. [541] Ibid., XXVIII., 82. [542] Niles, Weekly Register, VI., 208. [543] Ibid., XXXIX., 219 For references to manufactures see Niles, Weekly Register, VI., 208. Ibid., XVII., 341. Ibid., VIII., 141. Thomas, D., Travels, 52. Brown, S. R. Gazetteer, 338. Fordham, E. P., Travels, 75-76, 71-72. Fearon, H. B., Journey, 203. Birkbeck, M., Notes, 33-34. Nuttall, T., Travels, Early W. Travels, XIII., 45. Ogden, G. W., Letters, Early W. Travels, XIX., 25. Niles, Weekly Register, XXIX., 180. Ibid., XXXV., 102. Hall, J., Letters, 34. Flint, T., History and Geography, I., 132, 147, 426-427. Niles, Weekly Register, XXXVI., 66. Ibid., XXXVII., 178. Ibid., XXXIV., 346. [544] Niles, Weekly Register, VI., 209. [545] Hall, J., The West, 264. Hall, J., Notes, 270. [546] Niles, Weekly Register, XXXVIII., 86. Hall, J., Notes, 174. A period of distress in the western country which reached its height about 1819. Flint, T., History and Geography. I., 180. [547] Flint, T., History and Geography, I., 410.