IMPORTANT FROM WASHINGTON.
Army Order Relative to the Troops en Route for Utah.
Gen. Harney to Assume Command of the Depart-ment of the West—Gen. Johnston to Remain in Utah.
Settlement of the St. Domingo Difficulties—Mexican Affairs, &c.
Special Dispatch to the New-York Times.
WASHINGTON, Tuesday, June 29.
Through the courtesy of the Assistant Adjutant-General, I am enabled to lay before the readers of the TIMES the following important Army Older, in advance of its publication elsewhere :
GENERAL ORDERS NO. 17.
HEAD-QUARTERS OF THE ARMY, June 29, 1858.
On the supposition, which at this distance seems probable, that the Mormons no longer intend to op-pose an armed resistance to the entrance of the Uni-ted States troops into the Valley of Salt Lake, the General-in-Chief, after full consultation with the Sec-retary of War, directs that the following disposition of the troops now in, and on the march to the De-partment of Utah shall be made without delay :
First—The troops to remain in the Department of Utah, under the command of Brevet Brigadier-Gene-ral JOHNSTON, will be eight companies of the Second Dragoons, PHELPS' Battery of the Fourth Artillery, REYNOLDS' Company of the Third Artillery, and three regiments of infantry—the Filth, Tenth, and either the Sixth or the Seventh.
Second—The ten companies of the Fourth Artillery, and D and K companies of the Second Dragoons, will, for the present, occupy the District of the Platte, as directed in General Orders No. 6 from the Head-quarters of the Army, for the purpose of keeping open the communication between the Missouri and Utah. The troops in the District of the Platte will be sub-ject to the orders of the commanding officer of the Department of Utah.
Third—Six companies of the First Cavalry will re-main on the Plains during the Summer, and till as late in the Autumn as the grass and the season will permit, then to return to Fort Riley or Leavenworth, as may hereafter be determined. Whilst out they will make excursions among the Indian tribes whose conduct may been suspected of unfriendliness, for the purpose of impressing upon them the power of the United States, and of confirming them in their pres-ent pacific professions. The commanding office of these companies will keep the commanding officers of the military posts in the Platte District, and of forts Riley and Leavenworth, notified where commu-nications find him. He will make reports by every opportunity to Department and General Head-quarters. The remaining companies of the First Cavalry to return at once to Fort Riley.
Fourth—BARRY'S and HUNT’S batteries will be im-mediately sent back to fort Leavenworth.
Fifth—After completing the work of cooperating with the battalion of the Sixth Infantry, in opening a road to Camp Scott, via the Cheyenne Pass, the com-pany of Engineer Soldiers will return to West Point, New-York.
Sixth—The troops sent from New-Mexico as an escort to Captain MARCY will be sent back to that department.
Seventh—Reliable, though not official, accounts of Indian hostilities of some magnitude in Washington and Oregon Territories, making it advisable to strengthen the force now in that quarter, a regiment of infantry, either the Sixth or the Seventh, (probably the former,) as the commander in Utah may deter-mine, will be sent as soon as he can safely spare it, to Fort Walla Walla.
The necessary subsistence and other stores and transportation for this movement will be taken from the supplies now in, or on the way to Utah.
If he should obtain information to cause him to be-lieve it unsafe tor the regiment to direct its march upon Walla Walla, the Commander in Utah will order it by such other route to the Department of the Pacific as he may judge best.
Eighth—The one year's subsistence now on the way in the contractors' trains for the troops already in Utah, as well as for the whole of the reinforce-ments originally destined for the same Department, will not, except in a very extreme case, be broken in upon or diverted from their destination, but will be sent forward, in order to afford, wish care, about two years' supply tor the smaller force designated above to remain in the Department of Utah.
The First Cavalry, the troops in the District of the Platte, and those who are to return to Fort Leaven-worth, will be subsisted from the supplies originally ordered to be thrown forward for the consumption of the reinforcements on the route to Utah, and from the year's supply for one thousand five hundred men now going forward from Port Leavenworth.
On the thirty-nine hundred beeves on the way to Utah, not to exceed one thousand of those belonging to the United States may, if, necessary, be stopped and applied to the use of the troops in the District of the Platte First Cavalry, etc.
As it is believed the troops in Utah will have con-sumed their present supply of subsistence stores be-fore those on the way in the contractors' trains will reach them, Brigadier-General HARNEY will, in the time of the receipt of this order and the then position of the supplies should make it praticable, take all the Government mule-wagons now with the rein-forcements which can possibly be soared, and load them lightly with the principal articles of subsist-ence, such as flour, bacon, coffee, sugar, dessicated vegetables, vinegar, etc., and send them forward with dispatch to General JOHNSTON.
Ninth—Of the Quartermasters' supplies also on wheels for Utah, a sufficient quantity for the troops in the District of the Platte, the First Cavalry, etc., will be taken from the trains by the Principal Quarter-master, the remainder to continue forward as origi-nally ordered.
The same officer will examine the packages of clothing, and take forward a two years' supply for the troops designated for Utah, and direct such disposi-tion of the supplies to be made as the service may require.
Of the 1,000 horses now en route for Utah, some 200 may be retained by Brigadier-General HARNEY tor service elsewhere.
Tenth—A distribution of the ordnance supplies, arms and amunition also en route for Utah, will be made, viz.: Those put up for the troops in Utah will, of course, go forward. Of such as were intended for the reinforcements, obtained on requisition by First Lieutenent SHUNK of the Ordnance, enough will be takes to supply the wants of the First Cavalry, the troops in the district of the Platte, and these to return to Fort Leavenworth—the remainder to continue forward to Utah with First Lieutenant SHUNK and the enlisted Ordnance detachment under his com-mand.
Eleventh—Lieut. Col. G. H. CROSSMAN, Deputy Quartermaster-General, and Captains P. T. TURNLEY and GEORGE H. PAIGE, Assistant Quartermasters, are assigned to duty in the Department of Utah, and un-der instructions of Brigadier-General HARNEY, will accompany the trains and troops for the Utah De-partment.
Captain W. S. HANCOCK, Assistant Quartermaster, will also be placed on duty with these trains, and will be tent with the regiment of Infantry to the De-partment of the Pacific, to be assigned to duty by the officer commanding in Oregon and Washington Ter-ritories.
Brevet Major E. B. BABBITT, Assistant Quarter-master, will be stationed at Port Laramie.
Captain W. L. CABELL. Assistant Quartermaster, is assigned to duty at Fort Kearney.
Twelfth—Captain M. D. L. SIMPSON. Commissary of Subsistence, will, immediately on the receipt hereof, proceed with the Order in the most expeditious man-ner to overtake Brigadier-General HARNEY, and re-port to him for the special duty of superintending, under his orders, the arrangements of the Commis-sary Department, made necessary by the changes herein ordered. After completing this duty, he will rejoin his station at Fort Leavenworth.
Thirteenth—Surgeon J. J. B. WRIGHT and the other medical officers now under Brigadier-General HARNEY, will continue on duty with the troops, or, with the exception of Surgeon WRIGHT, go to Utah with the Seventh Infantry recruits, etc., as that Comman-der may direct.
The nectary medical supplies for the First Cavalry, etc., will be taken from those now en route for Utah, the remainder to go forward as originally or-dered. Fourteenth—The Paymaster furthest in advance on the march will proceed with his funds to Utah. The other Paymasters will remain on duty in the District of the Platte.
Fifteenth—The destination of the officers of the Topographical Engineers, heretofore assigned to duty with the troops fur Utah, will not be changed. They will proceed to Department-Headquarters and report for duty to Brevet Brigadier-General JOHNSTON.
Sixteenth—The change in the destination of a portion of the supplies, as hereinbefore ordered, will, if possible, be made at, or this side of Fort Laramie. Seventeenth—General HARNEY will also give such orders as any be necessary to send forward the of-ficers, recruits and remounts belonging to ordestined for the corps already in Utah, and such further instructions to carry into effect the provisions of this order as he may find the state of the service to call for after accomplishing this duty, he will return to St. Louis, Mo, and assume command of the Depart-ment of the West.
Eighteenth—Assistant Adjutant-General D. C. BU-ELL will remain attached to the Staff of Brigadier-General HARNEY, and accompany him to St. Louis, there to resume his position at the head-quarters of the Department of the West. Nineteenth-if in his march to the West, Brigadier-General HARNEY should receive satisfactory intelli-gence that the voluntary submission of the Mormons to the Federal authorities, assumed in the preamble to this order, is not to be relied upon, but, on the con-trary, serious resistance to the entrance of our ad-vanced forces into Salt Lake Valley on the part of these people is probable, the General, in the exerci-se of a sound discretion, will continue to advance with the whole of the reinforcements now en route for that Territory, or with such parts thereof, in addition to the 6th and 7th regiments of Infantry and Reynolds' Battery, as to him may seem necessary and person-ally the General will continue with the partial rein-forcements, or return and assume command of the Department of the West, as be may prefer.
By command of Brevet Lieutenaut-General SCOTT,
IRVIN C. MCDOWELL,
Assistant Adjutant General.
Lieut. RAXON, of the Ordnance Corps, left this after-noon as an express, to bear the above Order to Capt. SIMPSON at Fort Leavenworth, who proceeds with it to Gen. HARNEY.
Capt MCINTOSH reports our difficulties with St Do-mingo as amicably settled. BAEZ has surrendered to SARTANA. As Capt. MCINTOSH left the port the St, Domingo fleet passed in, to be turned over to the suc-cessful party.
Gen. ROBLES has dispatches only from the Mexican Consul at New-Orleans—nothing definite from Mexico. Q.
[FROM THE REPORTER FOR THE ASSOCIATED PRESS]
WASHINGTON, Tuesday, June 29. The Navy Department has confirmatory ac-counts of the proceedings of Commodore MCINTOSH at St. Domingo. The Dominican fleet, with the ex-ception of a bark which returned to her original own-er, had been given over to SANTANA, who, with his troops, would immediately occupy the city. It is true, as has been rumored, that he gave Commodore MCINTOSH the most solemn assurances of the protec-tion of all American citizens, and expresses to our Government his great desire to maintain the most amicable relations with it.
By order of the War Department, a military post to be known as Fort Abercrombie, will be established on the most eligible site near the head of navigation of the Red River of the North, in Minnesota. Oper-ations will commence without delay. Two companies from Fort Ripley, and one from Fort Ridgely, are charged with its construction. The post of Fort Ripley will be broken up.
The Secretary of the Navy his instructed the Bureau of Construction to prepare a drawing of plans for building, without unnecessary delay, the eight ves-sels-of-war recently authorized by Congress. Two will probably be constructed at the Philadelphia Navy-Yard, and one at each of the other yards, with the exception of that at Washington. It is said that the side-wheel steamer for the China Sea will be built at the California Navy-Yard.
The Secretary of the Navy intends leaving Wash-ington shortly, for the purpose of inspecting the Northern Navy Yards. It is said the affairs of Mexico occupy the attention, of the Administration.