@misc{indiciae8d5b07fe7398, title = {Spirit leveling in California, 1896-1923: 35 degrees to 36 degrees latitude, 120 degrees to 121 degrees longitude}, author = {Claude Hale Birdseye}, year = {1925}, doi = {10.3133/b766x}, url = {https://pubs.usgs.gov/publication/b766X}, note = {Source identifier: b766X} }