While the brigade lay at Wurtzburg, the King sent out so many detachments that he had only about ten thousand men at head-quarters, and an army of fifty thousand men, commanded by the Duke of Lorraine, advanced against him. His Majesty having received information that the enemy designed to pass the Maine at _Oxenford_ and attack him, the King proceeded, on the same evening, after dark, to the quarters of HEPBURNS'S SCOTS BRIGADE, and commanded the men to assemble under arms immediately. Having selected eight hundred musketeers, his Majesty commanded them to follow him, while the pikemen and colours remained behind. The musketeers, being led by Brigadier-General Hepburn, and accompanied by eighty Swedish horsemen, continued their march throughout the night, and at two o'clock on the following morning arrived at _Oxenford_, and formed up in the market-place, while fifty of the horsemen advanced to observe the motions of the enemy. Soon afterwards the report of pistols was heard, when his Majesty sent out a lieutenant and fifty musketeers to skirmish and to cover the retreat of the horse, which service was gallantly performed. The enemy, however, proved too numerous, and the fifty musketeers were forced to retire, when the King sent a hundred musketeers, under Lieutenant-Colonel Monro, to restore the fight, and they drove back a superior body of the Imperialists, for which they were applauded by the King. These few Scots having thus frustrated the designs of the enemy, his Majesty returned to Wurtzburg, leaving Hepburn, with his musketeers, to defend the place; and this excellent officer made such a formidable disposition of his men, and kept so good a countenance, that, although the enemy advanced with his army up to the town with drums beating and colours flying, as though he was about to storm the place, yet he afterwards retired. The musketeers, having thus boldly confronted a large army and maintained their post, were afterwards ordered to return to Wurtzburg. On the 7th of November HEPBURN'S SCOTS BRIGADE, or the GREEN BRIGADE, advanced with the army towards _Frankfort on the Maine_, a place celebrated throughout Europe for its annual fairs; and while traversing the rich plains and beautiful scenery of one of the most fruitful parts of Germany, several strong towns surrendered to the army. The brigade crossed the Maine at Aschaffenberg, on the 14th of November, and arrived at Frankfort on the 16th, when the city surrendered.