If anyone wants to see the full text of the 3 acts of Parliament (1609, 1775 and 1799)relating to the bondage of colliers, you can find them on my website. www.hoodfamily.info There'a few small bits I've transcribed from some mining records too. The narrative histories on three of the Hood family (David, William and Thomas) shows how a family was affected by being bound to one particular coalworks. Some early mining records have survived but mainly for three reasons. Either they have survived in papers from court cases, or in estate papers from places where the landowner ran his own mines, or they were retained in solicitors offices due to a legal dispute. Quite a few deposited records at the national Archives of Scotland have come from solicitors offices which explains why there's plenty of leases and legal stuff but little else. Albert