TY - RPRT TI - Spirit leveling in California, 1896-1923: 40 degrees to 41 degrees latitude, 124 degrees to 125 degrees longitude AU - Claude Hale Birdseye PY - 1925 DO - 10.3133/b766ww UR - https://pubs.usgs.gov/publication/b766WW ID - b766WW ER -