In proof of this, I need only point to a practice still lingering amongst us of calling landed proprietors, not as Mr.So-and-so, but by the names of their estates.

I recollect, in my early days, a number of our proprietors were always so designated.

Thus, it was not as Mr.Carnegie, Mr.Douglas, Mr.Irvine, etc., but as Craigo, Tillwhilly, Drum, etc.
An amusing application of such a territorial denominative system to the locality of London was narrated to me by a friend who witnessed it.

A Scottish gentleman, who had never been in the metropolis, arrived fresh from the Highlands, and met a small party at the house of a London friend.

A person was present of most agreeable manners, who delighted the Scotsman exceedingly.