The series _elum didara_ is entered in the Assyrian liturgical catalogue, IV Raw. 53_a_ 8, and the first tablet of this Enlil liturgy has been found in the Berlin collection and published by REISNER, SBH. No. 25.(477) The Berlin tablet belongs to a great Babylonian temple library of the Greek period redacted by a family of liturgists descendants of Sin-ibni. A fragment of the same first tablet of another Babylonian copy has been found, BM. 81-7-27, 203.(478) The catch line of tablet two is lost on SBH. 25 and no part of tablet two has been identified. In 1914 I copied BM. 78239 (=88-5-12, 94) the upper half of a large tablet carrying according to the colophon ninety-six Sumerian lines. The number of lines provided with an interlinear translation on this fragment is only two, which increases the actual number of lines to ninety-eight. Probably a few more should be added for Semitic lines on the lost portion. This tablet, also from a Babylonian redaction, belongs to an edition made by another school of liturgists and contains tablet three of _elum didara_. The third tablet of _elum didara_ began with a melody _nin-ri nin-ri gû-am-me_ to the mother goddess Bau (I. 2), who in line 7 is identified with Nanâ. Lines 3-6 introduce by interpolation other local forms of the mother goddess, as a concession to cities whose liturgists succeeded in inserting these lines before the canon of sacred songs were closed in the Isin period. Hence Babylon is favored by a reference to Zarpanit in line 3; Barsippa by a reference to Tašmet in lines 4-6. Bau or Gula wails for Nippur whose destruction is here attributed to the moon-god, Sin. The introduction of a long passage to the moon-god in the weeping mother melody of an Enlil liturgy is unusual. The entire passage reflects the phraseology and ideas of the well-known Sumerian hymn to the moon-god _magur azag anna_.(479) The composer desiring to utilize these fine lines makes a setting for them by describing Sin as the god who visited Nippur with wrath, regardless of the inconsistency of placing such a passage in an Enlil song service which attributed the sorrows of Nippur to Enlil himself.