5º. The duke of Dalmatia was little beholden to fortune at the commencement of his movements. Her first contradiction was the bad weather, which breaking up the roads delayed the concentration of his army at St. Jean Pied de Port for two days; all officers know the effect which heavy rain and hard marches have upon the vigour and confidence of soldiers who are going to attack. If Soult had commenced on the 23d instead of the 25th the surprise would have been more complete his army more brisk; and as no conscript battalions would have arrived to delay Reille, that general would probably have been more ready in his attack, and might possibly have escaped the fog which on the 26th stopped his march along the superior crest of the mountain towards Vellate. On the other hand the allies would have been spared the unsuccessful assault on San Sebastian, and the pass of Maya might have been better furnished with troops. However Soult’s combinations were so well knit that more than one error in execution, and more than one accident of fortune, were necessary to baffle him. Had count D’Erlon followed his instructions even on the 26th general Hill would probably have been shouldered off the valley of Lanz, and Soult would have had twenty thousand additional troops in the combats of the 27th and 28th. Such failures however generally attend extensively combined movements, and it is by no means certain that the count would have been able to carry the position of the Col de Maya on the 25th, if all general Stewart’s forces had been posted there. It would therefore perhaps have been more strictly within the rules of art, if D’Erlon had been directed to leave one of his three divisions to menace the Col de Maya while he marched with the other two by St. Etienne de Baygorry up the Alduides. This movement, covered by the national guards who occupied the mountain of La Houssa, could not have been stopped by Campbell’s Portuguese brigade, and would have dislodged Hill from the Bastan while it secured the junction of D’Erlon with Soult on the crest of the superior chain. [Sidenote: Original Note by the Duke of Wellington, MSS.]