by in which the garrison was capable of such an advance. They could not now dispose of more than 10,000 men, soldiers and peasants and citizens all included, and none of these could be drawn away from the city, where the fighting-line was always growing weaker. Indeed, its numbers were so thinned by the epidemic that Palafox was guarding the Aljafferia with no more than 300 men, and manning the unattacked western front with convalescents from the hospitals, who could hardly stand, and often died at their posts during the cold and damp hours of the night. All his available efficients were engaged in the street-fighting with the 3rd Corps. For while the attack on the suburb was being pressed, the slow advance of the besiegers within the walls was never slackened. On some days they won a whole block of houses by their mining operations: on others they lost many men and gained no advantage. The right attack was extending itself towards the river, and working from the convent of San Augustin into the quarter of the Tanneries. At the same time it was also moving on toward the Coso, but with extreme slowness, for the Spaniards made a specially desperate defence in the houses about the University and the Church of the Trinity. One three-storied building, which covered the traverse across the Coso to the south of the University, stood _ten_ separate assaults and four explosions, and held out from the ninth to the eighteenth, effectually keeping back the advance of the besiegers in this direction[142]. Nor could the French ever succeed in connecting their field of operations on this front with that which centred around Santa Engracia. Down to the very end of the siege the Saragossans clung desperately to the south-eastern corner of the city, and kept control of it right down to the external walls and the bank of the Huerba, where they still possessed a narrow strip of 300 yards of the _enceinte_. [142] Belmas, ii. 314, and before.