Further details are obtained from the account of the American Occupation written by W. Cameron Forbes, as follows: 
 
The insurgents were driven northward until, on November 12, 1899, American troops entered Tarlac and the insurgent organization dissolved, Gene.  Aguinaldo, retiring with his bodyguard into the mountains of Benguet, narrowly escaped capture by the advance point of General Lawton’s column, under Brigadier-General Samuel B. M. Young, near Pozerubio, November 15th. The insurgent secretary of state, Don Felipe Buencamino, other high insurgent civil officials, and Gen. Aguinaldo’s mother and son were captured or sought the protection of the American troops against the people of that region who were hostile to the Tagalogs. [37]

General Aguinaldo, accompanied by a small bodyguard, continued his flight northward through the mountains of Benguet and on December 7, 1899, when overtaken by an American force, he again escaped capture as the result of a rear guard action in which the youthful General Gregorio del Pilar sacrificed his own life in order to permit his chief to escape.  Aguinaldo, with a few companions, then made his way eastward through the mountains to the Pacific Ocean.  His whereabouts remained unknown to the American forces until a short time before his capture In March 1900. [38]

By the end of March 1900, the occupation of all large towns in the Islands had been effected and the important ports opened to commerce.

Organized resistance on the part of the insurgents was at an end but small bands of insurgents in various parts of the Islands carried out an “exceedingly vexatious and annoying guerrilla   warfare of a character closely approaching brigandage” until April 1902.   The last of the  insurgent leaders to surrender was General Miguel Malvar, who surrendered to the American authorities in Mindoro on April 16, 1902. [39]

From   the    foregoing   account  it  is evident    that   from   September 1898, until November 1899, the Philippine Revolutionary Government was the control governing   authority of a large part of   the   Philippines. Immediately after the surrender of Manila on August 13, 1898, the Americans were in. control of only the city of Manila and the town of Cavite. The Spaniards were still in control, and remained in control for some months thereafter, o Iloilo, Jolo and Zamboanga.  Elsewhere in the Philippines, the insurgents were   in control. Concerning the functions of  government which were actually performed by the Revolutionary Government, Major Palmer wrote as follows:
 

…The Revolutionary Government, was for many months, a de facto government  exercising within a large territory and over a large population by no means wholly native, all the functions of a bona fide government, including taxation, military service, civil regulations, etc…. mail and telegraph services were organized, the railway was  operated, and such other means of communications were adopted as conditions  permitted; letters were required to bear stamps, and registry service was provided and used in many places. The stamp issues cannot therefore be regarded as either   unnecessary or speculative, but were bona fide in all respects.  [40]

THE   STAMP LAWS OF THE REVOLUTIONARY GOVERNMENT

It appears from the specimens of documents, which have survived that in the territory     subject to the Revolutionary Government, as well as in Manila during the same period, relatively, little change was made in the stamp tax laws, which were in force at the close of the Spanish regime.

It is apparent, however, that in the territory subject to the Revolutionary these laws were not as rigidly enforced as they were in Manila. This probably may have been due, at least in part, to a lack of adequate supplies of stamps and stamped papers, particularly during the first few months of 1898.

THE STAMPED PAPER OF THE REVOLUTIONARY GOVERNMENT 

At Malolos in September 1898, the Central Revolutionary Government organized a  department of Communications, which assumed control of   the   postal and telegraph services, and a department of Revenues and Property, which   took charge of the collection of taxes.  The printing of adhesive postage, telegraph and revenue stamps and of revenue stamped paper was immediately ordered. These were printed by a firm of lithographers in Manila and were smuggled out of Manila. The adhesive stamps are said to have been issued in September 1898.  Apparently the stamped paper did not become available, however, until late in December 1898, or early in 1899.