Edition and History:
Source of Map - Appears In:
The introductory phrase Appears in is used in describing the source of an item that is identical with a plate in a specific atlas or other work but exhibits no physical evidence (e.g., plate number, folds, backing, text on verso, map printed on two sheets joined, etc.) of having been removed from another work.
The phrase Appears in is also used to describe an item that is identical with a plate that appears in several different editions of an atlas or in several different works. This phrase is used even if there is physical evidence that the item has been removed since it is usually impossible to determine which of the different editions or works originally contained the item. Variant between the date of the item and the publication date of the atlas should not affect the decision of whether to add the note.
If however, the evidence of removal specifically identifies the original publication (e.g., although the plate was included in several editions of an atlas, a special type of fold in the plate appears in only one edition), prefer the introductory term From for the citation.
When the item is found in multiple editions of a work, always cite the earliest edition that contains the plate.