German Biblical scholar Constantin von Tischendorf wrote about his visit to the monastery in "Reise in den Orient" in 1846 (translated as "Travels in the East" in 1847), without mentioning the manuscript. Later, in 1860, in his writings about the Sinaiticus discovery, Tischendorf wrote a narrative about the monastery and the manuscript that spanned from 1844 to 1859. He wrote that in 1844, during his first visit to the Saint Catherine's Monastery, he saw some leaves of parchment in a waste-basket. They were "rubbish which was to be destroyed by burning it in the ovens of the monastery", although this is firmly denied by the Monastery. After examination he realized that they were part of the Septuagint, written in an early Greek uncial script. He retrieved from the basket 129 leaves in Greek which he identified as coming from a manuscript of the Septuagint. He asked if he might keep them, but at this point the attitude of the monks changed. They realized how valuable these old leaves were, and Tischendorf was permitted to take only one-third of the whole, i.e. 43 leaves. These leaves contained portions of 1 Chronicles, Jeremiah, Nehemiah, and Esther. After his return they were deposited in the Leipzig University Library, where they remain. In 1846 Tischendorf published their contents, naming them the 'Codex Friderico-Augustanus' (in honor of Frederick Augustus and keeping secret the source of the leaves). Other portions of the same codex remained in the monastery, containing all of Isaiah and 1 and 4 Maccabees.