Introduction
1. Superintendents and special agents, 1850-1877
2. Setting the stage: Samuel S. Lawson, 1878-1883
3. The need for water: John G. McCallum, 1883-1885
4. A brief, bitter tenure: John Shirley Ward, 1885-1887
5. A show of force: Joseph W. Preston, 1887-1889
6. A controversial collector: Horatio Nelson Rust, 1889-1893
7. A troubled tenure: Francisco Estudillo, 1893-1897
8. The continuing struggle: Dr. Lucius A. Wright, 1897-1903
Epilogue.