TY - RPRT TI - Spirit leveling in California, 1896-1923: 36 degrees to 37 degrees latitude, 121 degrees to 122 degrees longitude AU - Claude Hale Birdseye PY - 1925 DO - 10.3133/b766ee UR - https://pubs.usgs.gov/publication/b766EE ID - b766EE ER -