Surely, National Archives of Scotland!! www.nas.gov.uk Recently, I came across your E-Mail message dated April 1, 2009 with a subject of Midlothian - NAS catalogue, which increased my interesst. I am currently involved in genealogical research of Scotland. Unfortunately, I am unable to understand "what exactly is the NAS Catalogue and what does it do?' Also, what is the e-mail address for the NAS Catalogue and what is it's Internet address?