Government, to be wielded at its will, a moral lever of the most powerful description to secure the faithful observance of the Treaty in all time to come.' [Sidenote: Return southward.] _At Sea, Gulf of Pecheli.--July 5th_.--At last I am actually off--on my way home? May I hope that it is so? I got on Sunday the Emperor's assent to the Treaty, in the form in which I required it; sent immediately down to stop the troops, and set off myself on Tuesday at noon for the Gulf. We sailed yesterday afternoon, with the intention, if possible, of seeing the great Wall of China on our way to Shanghae, but we have not been very successful, and have now put about, and are moving southwards.... Frederick is going home with the Treaty, and I proceed _via_ Japan.... _July 14th._--Frederick embarks to-night, and sails to-morrow morning at four. I shall not know all that I lose, publicly and privately, by his departure, till he is gone.... _Shanghae, Sunday, July 18th._--I have just returned from church. Such an ordeal I never went through. If a benevolent lady, sitting behind me, had not taken compassion on me, and handed me a fan, I think I should have fainted.... Everyone says that the heat here surpasses that felt anywhere else. They also affirm that this is an exceptional season. _July 19th._--Writing has been an almost impossible task during these few last days. The only thing I have been able to do has been to find a doorway, or some other place, through which a draught was making its way, and to sit there reading.... In sending Frederick away, I have cut off my right arm, but I think, on the whole, it was better that he should take the Treaty home,... and of course he is better able than anyone else to explain what has been the real state of affairs here.... It is impossible to acknowledge too strongly the obligation I am under to him for the way in which he has helped me in my difficulties. [Sidenote: Yeh]