The position was exasperating to the highest degree. ‘Establishing a permanent bridge is out of the question,’ writes D’Urban, the chief of the staff, in his journal. ‘The means are anything but secure either for passing the army (tedious beyond measure, too, no doubt), or for establishing a communication afterwards for supplies and other purposes. Nevertheless the general state of things, and above all Lord Wellington’s reiterated orders received this morning, render it necessary to pass[335].’ The engineers, put upon their mettle, finally made the five Spanish pontoon boats into two flying bridges worked by ropes. On these a battalion of infantry was passed across the river, and stockaded itself on the other side. Later in the day (April 5) some small tin pontoons arrived from Lisbon, and out of these, helped by all the wine-casks of the neighbouring villages, collected in haste, a floating bridge was constructed, ‘not very substantial, but, upon trial, found capable of admitting infantry to pass in file[336].’ It was not ready till noon on the 6th, but by the two flying bridges the whole 2nd Division and three squadrons of cavalry were passed on the night of the 5th-6th. What might have happened it Latour-Maubourg had concentrated at Olivenza, and fallen on the first two or three battalions that crossed with a force of all arms, we had better not inquire[337]. A disaster on a small scale might very possibly have occurred. But not a Frenchman was seen. [335] This must have been Wellington’s Celorico dispatch of March 30, saying that ‘between chevalets (trestles), boats, Spanish and English pontoons, and a ford, I should hope that the Guadiana may be passed in safety’ (_Dispatches_, vii. 414.) [336] D’Urban’s _Narrative_, p. 10. [337] Beresford maintained that troops on the right bank could be protected by the fire of the guns of Jerumenha, which is in a lofty position, commanding the Spanish shore. But they would have been of little use if the French had attacked at night. (_Strictures on Napier_, p. 177.) During the 6th Hamilton’s Portuguese passed with infinite slowness on the flying bridges, and the cask and pontoon bridge being at last completed, Cole’s 4th Division and Long’s cavalry began to file over it at dusk, an operation so tedious that the last of them were not over till the following dawn. Ere they were all across a ‘regrettable incident’ occurred: the advanced cavalry pickets were formed on the night of the 6th-7th by Major Morris’s squadron of the 13th Light Dragoons. Owing to bad staff work in the placing of them (as D’Urban and General Long both assert), the main guard of this squadron was surprised by French cavalry in the dusk of the morning, and captured almost entire, two officers and fifty men being taken. The assailants found that they had run into the camp of a whole army, and promptly retired before they could be touched.