important terms in the language’; and he found it sufficient for the interpretation of the historical inscriptions. The present Memoir was intended simply as introductory to the subject, and he did not give a list of the one hundred and fifty signs with their values attached. We cannot, therefore, institute a comparison as yet with the Syllabarium already drawn up by Hincks. It is sufficiently clear, however, that he had not, at the time of writing the Memoir, realised the essentially syllabic character of the language. There are, he says, ‘cases where a single alphabetical power appertains to the sign,’ and, he adds, ‘it cannot certainly be maintained that the phonetic portion of the alphabet is altogether syllabic.’ ‘There is,’ he observes, ‘an extensive syllabarium; but at the same time many of the characters can only be explained as single consonants.’ There is no indication that he had as yet apprehended the principle that governs the combination of consonant and vowel, as recently expounded by Hincks, and which is interwoven with the whole structure of the language. Indeed he says distinctly: ‘I have neither adopted, nor do I conceive it possible to adopt, any system with regard to the employment of the vowels in Assyrian and Babylonian.’ In some other respects also he was still behind the great Irish scholar. Hincks, for example, had laid down that the distinction between the consonantal sounds is uniformly maintained; and the truth of this statement has been since confirmed. Rawlinson was, however, still of opinion that ‘the gutturals and sibilants everywhere interchange.’ ‘There is the greatest possible difficulty in distinguishing between _k_, _d_, and _t_. _L_ and _v_ interchange.’ It is evident also that he had still much to learn from his rival on the subject of the ideograms. It may be doubted indeed how far he had as yet apprehended the important place they occupy. ‘The names of the gods,’ he says, ‘are represented by signs which appear in some cases to be arbitrary monograms, but which are more generally either the dominant sound of the name or its initial phonetic power.’ He thought, for example, that the monogram for Bel was simply the letter ‘B,’ an idea that is wholly unfounded. He is of course aware that there are many other ideograms besides those used for the gods, but he gives them no sort of prominence. He, however, attributes an ideographic origin to the syllables. ‘When a sign represents a syllable,’ meaning apparently a compound syllable, ‘I conjecture that the syllable in question may have been the specific name of the object which the sign was supposed to depict; whilst in cases where a single alphabetical power appertains to the sign it would seem as if that power had been the dominant sound in the name of the object.’ But this is a purely academical question. The important point lay in precisely the opposite direction, and attention had been already called to it by Hincks. The