It's obviously one sentence.....'they kindly did invite me to a flowing bowl and down they advanced me some money, a shilling from the Crown.'..ie   they gave him the King's Shilling which was given to any enlisted man as a token payment to seal your enlistment. It is said that the origin of glass bottoms in tankards is so that you could see if some unscrupulous recruiting sergeant hadn't dropped a shilling in, and by drinking you were deemed to have 'taken the Kings shilling' and were now enlisted...this is a totally made up 'folk belief' ......