GENERAL COMMENTS. Acoustic tumors are non-malignant fibrous growths, originating from the balance or hearing nerve, that do not spread (metastasize) to other parts of the body. They constitute six to ten percent of the brain tumors.ENERAL COMMENTS. Acoustic tumors are non-malignant fibrous growths, originating from the balance or hearing nerve, that do not spread (metastasize) to other parts of the body. They constitute six to ten percent of the brain tumors.
Firth is a word in the Scots and English languages used to denote various coastal waters in Scotland and England.In mainland Scotland it is used to describe a large sea bay, or even a strait. In the Northern Isles it more usually refers to a smaller inlet.owever, some firths are exceptions. The Cromarty Firth on the east coast of Scotland, for example, resembles a large loch with only a relatively small outlet to the sea and the Solway Firth and the Moray Firth are more like extremely large bays.
Scottish Clans. The Clan is a concept which dates back to the 12th Century. The Scottish clans were originally extended networks of families who had loyalties to a particular chief, but the word 'clan' is derived from the Gaelic 'clann', meaning literally children.n Scotland a clan is still a legally recognised group with an official clan chief. The chief's Seal of Arms, incorporated by the Lord Lyon's letters Patent, is the seal of the corporation and only the chief has the legal right to use the seal on behalf of his clan.