[For topographic maps of the Geological Survey, which were not listed in Monthly catalogs, refer to the Geological Survey publication designated Maps Issued Mar. 1942 to Dec. 1943, and beginning Jan. 1944 to the monthly publication, Publications Issued, where charts are listed as they are issued.]
Notes:
[For topographic maps of the Geological Survey, which were not listed in Monthly catalogs, refer to the Geological Survey publication designated Maps Issued Mar. 1942 to Dec. 1943, and beginning Jan. 1944 to the monthly publication, Publications Issued, where charts are listed as they are issued.]