Vocabulary note written down by John Ewen MacRury, Beinn na Faoghla/Benbecula entitled 'Clach Nathrach' describing it as an 'accumulation of liquid matter form the mouth of the serpent' and where and how it is formed. He recalls having seeing a clach nathrach when at school in Uig, Lewis which was found by 'the herd boy of Croulista...on the south side of Suanaval hill' [Suaineabhal, Eilean Leòdhais/Isle of Lewis]. MacRury notes the clach nathrach as being valued for its healing properties and states he saw snakes in the glen between Balnakill and Miavaig, Uig [Baile na Cille, Miabhaig, both Eilean Leòdhais/Isle of Lewis], but the biggest he ever saw was in 1887 on the public road between Dairvaig and Tobermory in Mull [Dearbhaig/Dervaig, Tobar Mhoire both Am Muile/Isle of Mull] The text has been scored through in pencil as if transcribed elsewhere.