Editorial

The 27th International Psycho-Analytical Congress was held in Vienna during the period 25 to 30 July 1971. The main theme of this historic Congress was Aggression, and five invited papers on this topic were published in the Journal before the Congress, in Volume 51, Part 2, 1971. These papers were not presented at the Congress, but formed a background for extensive scientific discussions. In addition, a large number of papers on the main theme and on other topics were presented at the Congress.

The onerous task of selecting the papers to be given at the Congress from the large number submitted was, as always, undertaken by the Programme Committee of the International Psycho-Analytical Association. Because it was impossible to publish all the papers read, this Committee had the even more difficult and unenviable problem of selecting those papers which are to be published in the Journal as part of the Proceedings. There is no doubt that many of the papers which were not included in the final selection were of a high standard, and will doubtless also find their way into print.

As Editor, I want to express my own appreciation of the hard work carried out by those responsible for the organization of the Congress. The President of the Association, Dr Leo Rangell, and the Secretary, Dr Frances Gitelson, did everything in their power to facilitate the coordination between the Programme Committee and the Journal. The Programme Committee itself, under the co-chairmanship of Dr Samuel A. Guttman and Dr Arthur F. Valenstein, made heroic efforts to see that the authors of the papers to be published met the printer's deadlines, and that the papers were in suitable form for publication. In particular, the indefatigable Secretary of the Programme Committee, Dr Edward M. Weinshel, saw to it that liaison between the Journal and the Programme Committee of the International was pleasant and efficient. Difficulties in this area which had occurred in the past were completely absen