19. He ordered the frontier surveyed.
20. He put young officers in training for surveying expeditions.
21. He sent George McClellan to Crimea to study the military tactics of British and the Russian armies.
22. He appointed Robert E. Lee as Superintendent of West Point.
23. He advanced Albert Disney Johnston to important posts.
24. He had forts rebuilt and repaired.
25. He strengthened forts on the Western frontier, frequently drawing on arsenals in the South to do so.
26. He had the Western part of the continent explored for scientific, geographical and railroad work.
27. He was responsible for the new Senate Hall, the new House of Representatives, and for the extension of many public buildings in Washington, especially the Treasury Building.
28. He was responsible for the construction of the aqueduct in the National Capital.