The Joint Expedition of the British Museum and of the Museum of the University of Pennsylvania restarted its excavations at Ur on 1st November 1924 and closed down on 28th February 1925 after a most successful season. For the epigraphical side of the work I had associated with me this year Dr. L. Legrain, of the University Museum, to whose help I owe much more than I can express: even in this preliminary report it will be clear how greatly our discoveries gained in interest and value from his study of the inscriptions. Mr. J. Linnell, who was in the field for the first time, assisted on the general archaeological side and kept the card index of objects. Unfortunately there was no architect on the staff, and we had to make what shift we could without, in a campaign peculiarly rich in architectural results; all the time I had reason to regret the loss of Mr. F. G. Newton, whose skill and experience had proved invaluable in former years. The main reason for the lack of an architect was shortness of funds: the British Museum was unable to provide from its own resources its due half of the cost of the Expedition, and we could not have taken the field at all but for the generous help given by friends in London; and even so I should have been obliged to bring the season to a premature end in January had not the British residents in Iraq come forward with subscriptions for the British Museum's side of the work which, met by Philadelphia with an equal sum, enabled me to carry on for another month. To all these I wish to acknowledge my gratitude.