Most of the articles are followed by a critical essay on the sources of information, and by notes, in addition to the foot-notes.
Vols. 3-4 published by J.R. Osgood and Co. Boston, 1885.
Verso of t.p. (p. [2] at front), p. [2] following p. cxl, and p. [1] and [53] at end blank; Lacks title-page; Omissions: p. [50] at end; addenda & errata: p. [51]-[52] at end
Wichtigste literatur aber kartenkunde: p. 4-6