Reports on canals, railways, roads, and other subjects, made to "The Pennsylvania Society for the Promotion of Internal Improvement."

Eitemau Tebyg

• Sketch of the internal improvements already made by Pennsylvania; with observations upon her physical and fiscal means for their extension; particularly as they have reference to the future growth and prosperity of Philadelphia
  gan: Breck, Samuel, 1771-1862
  Cyhoeddwyd: (1818)
• A treatise on the improvement of canal navigation; exhibiting the numerous advantages to be derived from small canals
  gan: Fulton, Robert, 1765-1815
  Cyhoeddwyd: (1796)
• Letters addressed to the people of Pennsylvania respecting the internal improvement, of the commonwealth; by means of roads and canals
  gan: Duane, William J. (William John), 1780-1865
  Cyhoeddwyd: (1811)
• A description of the canals and rail roads of the United States, comprehending notices of all the works of internal improvement throughout the several states
  gan: Tanner, Henry Schenck, 1786-1858
  Cyhoeddwyd: (1840)
• Views on the subject of internal improvement between the Atlantic and western states, 1825
  gan: Hollins, William, d. 1845
  Cyhoeddwyd: (1825)