TY - RPRT TI - Spirit leveling in California, 1896-1923: 38 degrees to 39 degrees latitude, 121 degrees to 122 degrees longitude AU - Claude Hale Birdseye PY - 1925 DO - 10.3133/b766oo UR - https://pubs.usgs.gov/publication/b766OO ID - b766OO ER -