Théodule Devéria help Mariette read inscriptions in Cairo and its surroundings. He tried to accurately document the archaeological sites using drawings, stampings and photographs. His calotype pictures from this trip are often poor in quality, showing a lack of technical skills. In 1860 he was appointed preserving assistant at the Louvre's Department of Egyptology. He revisited Egypt in 1861–62, traveling up the Nile to Philae at the First Cataract, and into Nubia to the Abu Simbel temples. After returning he helped Mariette prepare descriptions of the excavation in Egypt in 1850–54 for publication. In November 1864 Devéria met the future oriental scholar
Abu Simbel temples princes Meryatum and Meryre, princesses Meritamen and Henuttawy, and princes Rahirwenemef and Amun-her-khepeshef, while on the north side the same figures are in reverse order. The plan of the Small Temple is a simplified version of that of the Great Temple. As the larger temple dedicated to the king, the hypostyle hall or pronaos is supported by six pillars; in this case, however, they are not Osiris pillars depicting the king, but are decorated with scenes with the queen playing the sistrum (an instrument sacred to the goddess Hathor), together with the gods Horus, Khnum, Khonsu, and Thoth, and the