Notes:

Variations in Title - Alternate Title:

As for single maps, alternate titles for serials, map series/sets, and multisheet single maps are recorded in a note. The entirety of this transcription depends on the situation.

Single alternate titles are recorded as for single maps.

The usual practice for alternate titles that vary from sheet to sheet is not to list the variant alternate titles, but simply to acknowledge their existence. Example:

Varying alternate titles may be listed if considered important (e.g., there were only two variations in the alternate title in the history of the publication, the variant title explains the subject content, one variant title predominates in the publication, etc.).