Thirdly, in the same way, all hospitals and all ambulances, together with the persons and effects therein, as well as their staffs, are to be respected unless they show themselves hostile. Fourthly, those who disobey what is set forth in the three former articles, will be tried by summary court-martial and shot, if by such disobedience there has been caused assassination, fires, robbery or violence. Triumphant Progress of the Rebels. Dewey's victory wonderfully increased the morale of the rebel army; while the Spaniards daily lost hope. In two weeks after landing, Aguinaldo had assembled a force of 3000 men with arms, and fought many skirmishes. He had also captured two strong batteries, and taken the whole province of Cavité. He had made sixteen hundred Spanish prisoners, and supplied his men with over 4000 rifles and with several field-guns captured from the enemy. On May 30th the Spaniards attacked the rebels, intrenched in a strong position at Zapote. The engagement was a very severe one and lasted ten hours, the Spaniards being forced to retire with a loss of 500 killed and wounded. The rebels, now numbering about 5000, full of enthusiasm, and well-armed, then attacked the Fourth, Sixth, and Eleventh Cazadores, and several companies of the Sixty-eighth and Seventy-fourth regiments. The natives in the last regiment deserted, after first killing their own officers. The Spaniards were beaten back with severe losses, and the rebels, with important reinforcements, then routed the enemy, taking many prisoners. Not long after, the capital of the province of Batangas was taken by the insurgents, and the Governor attempted to commit suicide. The Governor of the province of Malabra was also taken prisoner, and town after town, province after province, yielded to the victorious rebels, who daily grew stronger and gradually closed in on the capital. Outside, in the bay, was anchored Dewey's victorious American squadron, calmly awaiting reinforcements from home. With these he would aid Aguinaldo to prosecute the war on land. The Spaniards Fortify Manila. Meanwhile, the Spaniards displayed great energy in improving the defences of Manila. The moat was deepened, and all the shrubbery wherein an enemy might lurk and find cover was destroyed. For, as a last resource, the Spaniards intended to shut themselves in their grim old fortress, as if they thought to find security there, although a few ten-inch shells from the fleet would lay the whole city in ruins. Everywhere facing the bay trenches were dug, and modern 9 pounder Krupp field-pieces were mounted, and mountain batteries brought from the interior. But, notwithstanding these elaborate preparations, the Spaniards were lacking in good modern ordnance and in accurate marksmanship.