The diplomatists met to-day at half-past one o'clock. After Governor Stevens' address, the old Chief, Lawyer, spoke, which was the first time anything had been heard from the Nez Percés. Several of the other Chiefs followed, and the Council finally adjourned at five o'clock, without having yet made any sensible progress. The maxim, that "time is money," which prevails so extensively among the Anglo-Saxons, has not yet penetrated into the wilderness to be received as a motive in any way influencing the conduct. With the Indians, "the next moon" will answer just as well as this month, for any business that is to be transacted. I should think, however, that the Commissioners would have their patience utterly exhausted.

Until a late hour we heard from the Indian camps the sound of their singing and the beating of their drums, and could see the figures flit before the fires as the dancing went on.

Tuesday, June 5th.—Another visit before breakfast from some of our Indian friends. Early this morning Lieutenant Gracie sent off an express to the Dalles to report progress. Then came the same routine of the Council: Governor Stevens, at the opening, gave them the most elaborate address he has yet made, explaining to the Chiefs most definitely, what lands he wished them to give up, and what their "Great Father," (the President,) would give them in return, together with the benefits they would derive from the exchange. General Palmer afterwards made a speech an hour long, in which he endeavored to illustrate to his audience the many advantages resulting from their being brought into contact with civilization. His reasoning at one time led him to give an account of the Railroad and Telegraph. It was sufficiently amusing to listen to this scientific lecture, (as Julian Avenel says of Warden's homily in The Monastery,) "quaintly conceived and curiously pronounced, and to a well chosen congregation;" but it probably would have been much more diverting, could we have known the precise impressions left upon the minds of his audience, or have heard them talk it over afterwards in their lodges. After he had finished, Stechus, an old Cayuse Chief, made a short speech, and then Governor Stevens adjourned them until to-morrow.

There is evidently a more hostile feeling towards the whites getting up among some of the tribes, of which we had to-night a very unmistakable proof. The Cayuses, we have known, have never been friendly, but hitherto they have disguised their feelings. To-night, as Lieutenant Gracie and I attempted, as usual, to enter their camp, they showed a decided opposition: we were motioned back, and the young warriors threw themselves in our way to obstruct our advance. To yield to this, however, or to show any signs of being intimidated, would have been ruinous with the Indians, so we were obliged to carry out our original intentions. We placed our horses abreast, riding round the Indians, where it was possible, and at other times forcing our way through, believing that they would not dare to resort to actual violence. If, however, this hostile feeling at the Council increases, how long will it be before we have an actual outbreak?

Wednesday, June 6th.—To-day the Indians again determined not to meet in Council, as they wished to consult among themselves: so there is another day lost. After my ride up the valley to the Mission, I found on my return to dinner, an old trapper and Indian trader had come in to visit us, and was to be our guest. We had, however, a sumptuous repast, for he brought with him a buffalo tongue, a great luxury on the plains, and one which anywhere might tempt the epicure.

The races to-night were the most exciting we have seen, as the Indians had bet some sixteen or eighteen blankets (a great stake for them!) on the result, and all the passions of their savage natures were called into play. There was visible none of that Mohawk stoicism of manner which Fenimore Cooper describes. After the races were finished, Lieutenant Gracie and I concluded to ride into the camp of our amiable friends, the Cayuses, to see how they felt this evening. There was no attempt to exclude us, though if savage and scowling looks could have killed, we should both have ended our mortal career this evening in this Valley of Walla-Walla.

Thursday, June 7th.—Mr. McKay took breakfast with us. He is the son of the old Indian hunter so often mentioned in Irving's "Astoria," and whose name is identified with pioneer life in this region.

The Council met to-day at twelve, when I went into the arbor, and taking my seat at the reporters' table, wrote some of the speeches delivered. There is, of course, in those of the Indians, too much repetition to give them fully, but a few extracts may show the manner in which these wearisome debates were conducted day after day:

Governor Stevens. "My brothers! we expect to have your hearts to-day. Let us have your hearts straight out."

Lawyer, the old Nez Percé Chief. The first part of his speech was historical, relating the discovery of this country by the Spaniards, which is a favorite topic with the Indian orators. In the course of it, he thus narrated the story of Columbus and the egg, which he had heard from some of the missionaries.