Lepsius’ letter to Rosellini gives a critical recapitulation of the discoveries of the Master. It is the first really methodical and scientific work of an adherent of the Champollionic system, and although after this Lepsius only returned incidentally to the linguistic and grammatical side of Egyptology,[27] yet in this work, as everywhere where he planted the lever, he has pointed out the right way and method. In the Nubian Grammar, which was one of the chief works of his life, and which was completed at a late date, he showed how firmly he stood upon the grammatical foundation so early won, and how faithful he remained thenceforth to grammatical studies. He did not cease, too, to work at those studies, regarding the sounds of languages and the alphabet, to which he had early devoted himself. His “Standard Alphabet,”[28] which originated long afterwards and amidst great opposition, was intended chiefly to enable missionaries and travellers to reproduce correctly in our own language the sounds of the foreign tongues examined by them. This was to be done by means of letters, easily and conveniently modified by dashes and dots. It became of great practical importance, as it was adopted by the English “Church Missionary Society” as the most available universal alphabet to be employed, according to their directions, by their emissaries. No one can deny that it is also of scientific value. Its applicability has been specially proved with the African languages, and in this department it has been most successfully employed in a great number of grammatical and lexicographical works, as well as biblical translations and the reproduction of narrations, legends, and proverbs in the various idioms. Of the Hamitic branch of the African languages, which is distinguished by grammatical genders, there are seven side-branches, from the ancient Egyptian to the _Haūsa-_ and _Nama-_ (_Namaqua-_) languages, which have been thus examined. Of the more remote native African idioms there are not less than twenty-two. In 1874, during the Congress of Orientalists at London, we ourselves were permitted to hold council with him and other leaders of science, concerning an acceptable universal method of transcription for hieroglyphic writing. Many of his propositions were adopted at that time, but the method of transcription agreed on in the British Museum did not become current, and it is undoubtedly in need of much improvement. Lepsius had already given particular attention to the two special departments in which he was to achieve the greatest and most fruitful results; first at Göttingen, under the superintendence of O. Müller, then in Paris after the publication of Biot’s work, and finally at Rome, in the company of Bunsen. These departments were first, history, with its numerical groundwork of chronology, and in the second place, mythology.