Karl Wilhelm Ludwig Müller (1813–94), who wrote in Latin under the name Carolus Müllerus, was a German classicist whose monumental five-volume Fragmenta historicorum graecorum (also reissued in the Cambridge Library Collection) remains an important resource today. Between 1855 and 1861, he also produced this valuable two-volume collection of the works of lesser-known Greek geographers. Volume 1 (1855) contains a variety of Greek texts with parallel Latin translations and extensive footnotes. Works featured in this volume include both the Periplus ('Circumnavigation') of Hanno the Carthaginian and the Periplus of Pseudo-Scylax. Also included are Agatharchides' De mari Erythraeo ('On the Erythraean Sea') and writings by Arrian and Marcian of Heraclea. Müller's extensive prolegomena (also in Latin) discusses what is known about the authors, their works and the manuscript sources.