Although the "Catalogue of Texts and Authors" credits the authorship of the two works to the god Ea, it is this catalogue together with the codicil on the "Sakikkû" which suggest otherwise. The catalogue opens with an index of sorts, providing incipits for each of the tablets together with the number of their lines. "Šumma alamdimmû", “if the form,” contains physiognomic omens on twenty-seven tablets. In his catalogue, Esagil-kin-apli describes the work as: “... (concerning) external form and appearance (and how they imply) the fate of the man that Ea and Assaluḫi/Marduk (?) ordained in heaven.” The term "alamdimmû", “form” or “figure,” comes from the Sumerian alam.dímu. Following the first twelve tablets of the "Šumma alamdimmû" proper, the work is subdivided into sections beginning with "Šumma nigdimdimmû", “if the appearance” or “shape,” on two tablets, whose extant copies are too fragmentary to interpret. The section named "Šumma kataduggû", “if the utterance,” on one tablet describes the consequences of utterances and habitual conduct and shares characteristics with omens from the "Šumma ālu", “if a city,” terrestrial omen series. The section beginning "Šumma sinništu qaqqada rabât", “if a woman’s head is large,” on two tablets provides omens based on the appearance of a woman. The "Šumma liptu" section, “if a spot” or “mole,” was probably complete on nine tablets, eight devoted to the location of blemishes on males and one on females. The final tablet, "Šumma šer’ān pūt imittišu ittenebbi", “if the vein on the right side of his forehead throbs,” concerns itself with involuntary movements. In the colophons of the two extant catalogues of diagnostic and physiognomic omens, the origin of the "Sakikkū", “symptoms,” (Sumerian: SA.GIG: “diseased veins/muscles”) is given.