Under construction
The National Library of Scotland has many great maps available to browse. One good zoomable map of the Island of Jura is contained in John Thomson’s Atlas of Scotland, 1832.
Available here: http://www.nls.uk:8080/StyleServer/calcrgn?cat=Maps&item=/74400147.sid&style=maps.xsl&wid=700&hei=500&browser=win_ie&plugin=false