The first of the two great cylinders of Gudea ends at this point in the description of the temple, and it is evident that its text was composed while the work of building was still in progress. Moreover, the writing of the cylinder was finished before the actual work of building the temple was completed, for the last column of the text concludes with a prayer to Ningirsu to make it glorious during the progress of the work, the prayer ending with the words, “O Ningirsu, glorify it! Glorify the temple of Ningirsu during its construction!” The text of the second of the two great cylinders is shorter than that of the first, consisting of twenty-four instead of thirty columns of writing, and it was composed and written after the temple was completed. Like the first of the cylinders, it concludes with a prayer to Ningirsu on behalf of the temple, ending with the similar refrain, “O Ningirsu, glorify it! Glorify the temple of Ningirsu after its construction!” The first cylinder, as we have seen, records how it came about that Gudea decided to rebuild the temple E-ninnû in honour of Ningirsu. It describes how, when the land was suffering from drought and famine, Gudea had a dream, how Ninâ interpreted the dream to mean that he must rebuild the temple, and how Ningirsu himself promised that this act of piety would restore abundance and prosperity to the land. Its text ends with the long description of the sumptuous manner in which the patesi carried out the work, the most striking points of which we have just summarized. The narrative of the second cylinder begins at the moment when the building of the temple was finished, and when all was ready for the great god Nin-girsu to be installed therein, and its text is taken up with a description of the ceremonies and rites with which this solemn function was carried out. It presents us with a picture, drawn from life, of the worship and cult of the ancient Sumerians in actual operation. In view of its importance from the point of view of the study and comparison of the Sumerian and Babylonian religious systems, its contents also may be summarized. We will afterwards discuss briefly the information furnished by both the cylinders on the Sumerian origin of many of the religious beliefs and practices which were current among the later Semitic inhabitants of Babylonia and Assyria.