Sir Mark’s work during the last few years falls into eight successive periods. (1) February‒March, 1917, the collaboration in London with M. Picot, and after the latter’s departure for France, with us; (2) March‒June, 1917, our journey to Paris; his journey to Egypt; (3) June‒November, 1917, preliminary work leading to the Balfour Declaration; (4) November, 1917‒March 1918, from the Declaration to the despatch of the Commission to Palestine; (5) March‒October, 1918, the work in London during the stay of the Commission in Palestine; (6) October‒December, 1918, the work after the return of the Commission; (7) December 1918‒February, 1919, the journey to Syria, and (8) February, 1919, the last days in Paris. In the first period the foundations were laid; at that time Sir Mark was, so to speak, introduced into the world of Zionist ideas. The second was full of active negotiations with the Entente Governments. During the third Sykes was in busy relations with a number of the friends of our cause. In this period the work of Major Ormsby-Gore was of practically the same importance, as also during the fourth period. In the fifth period, during the time of the important work in Palestine of the Commission under the leadership of Doctor Weizmann, Major Ormsby-Gore was of great service there. The whole of the labours in London connected with the activity of the Commission and with a thousand other matters relating to Zionism fell upon Sykes, and necessitated daily work of an intensely difficult character.