Incoming Resources
- Spirit leveling in Texas, 1896 to 1915, inclusive, R.B. Marshall
- Results of spirit leveling in Texas, 1896 to 1910, inclusive, R.B. Marshall
- Spirit leveling in Texas, by J.G. Staack, Part 1
- Spirit leveling in Texas, by J.G. Staack, Part 5
- Spirit leveling in Texas, by J.G. Staack, Part 2
- Spirit leveling in Texas, by J.G. Staack, Part 4
- Spirit leveling in Texas, by J.G. Staack, Part 3