F. W. Watkins
- Tunnel Surveying on Division No. 6, New Croton Aqueduct. Dans: Transactions of the American Society of Civil Engineers, v. 23, n. 2 ( 1890). (1890):
- A Method of Taking Cross-Sections in Deep Rock Cuts by Triangulation. Dans: Transactions of the American Society of Civil Engineers, v. 22, n. 1 ( 1890). (1890):