Sasine (Scots Law) is the delivery of Feudal property
Burgh registers were instituted by an act of 1681. Only royal burghs had the registers and the register related to lands within the original burgh boundaries. The Burgh Registers (Scotland) Act of 1926 arranged for their gradual demise.
Transfers of property were originally by symbolic delivery, by handing over a clump of ground or a stone or similar object on the property itself, and then registering the "deed of conveyance" in the local "Register of Sasines". Actual sasines on the land itself were made unnecessary by an act of 1845. The "instrument of sasines" was superseded by the recording of the conveyance with a "warrant of registration" by an act of 1858.