XXXV. Über Sprachen, Denkmäler, Inschriften und Civilisation der Aethiopier des Alterthums und jetzt. [On the Language, Monuments, Inscriptions and Civilization of the Ethiopians of Antiquity and of the Present Day.] Berl. Mon.-Ber. 1844. 8.
XXXVI. Lettera sul suo viaggio in Egitto. Bull. dell’ inst. archeol. Roma. 1845. p. 40-44. (Letter from Philae of the fifteenth of September, 1844.)
XXXVII. On the Nile Alluvium of Nubia. Extract of a Letter from Dr. Richard Lepsius, Chief of the Prussian Scientific Commission in Egypt, to Dr. L. G. Morton, relative to the Language of the Bishareens of Nubia, and the Alluvial Deposits of the Nile. With an Analysis of those Deposits by Prof. W. R. Johnson: in “Proceedings of the Academy of National Sciences of Philadelphia,” Jan. 21. 1845. 8.
XXXVIII. Reise von Theben nach der Halbinsel des Sinai vom 4 März bis 14 April, 1845. [Journey from Thebes to the Peninsula of Sinai, from the fourth of March to the fourteenth of April, 1845.] Mit Tafeln. Berl. 1845. 8. Out of Print.
XXXIX. English Translation of No. XXXVIII. by Cottrell. London, 1846.
XL. General Map of the Peninsula of Sinai. 1845.
XLI. Special Map of the Ruins of the Monastery and City of Farân. 1845.
XLII. Über das Felsenrelief zu Karabél. [On the Relief upon the Rock at Karabél.] Archäologische Zeitung IV. 1846. p. 271-280.
XLIIa. Über einige syntaktische Punkte der Hieroglyphischen Sprache. [On some Points in the Syntax of the Hieroglyphic Language.] Berl. Mon.-Ber. 1846.
XLIII. Voyage dans la Presqu’ île du Sinai, etc. Lu à la société de Géographie, séances du 21 Avril et du 21 Mai. Extrait du Bulletin de la soc. de géogr. Juin. 1847. Paris. 8.