TRANSACTIONS
OF THE
GEOLOGICAL SOCIETY
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I. Sketch of the Mineralogy of Sky,
By John Mac Culloch, M.D. F.L.S. President of the Geological Society,
Chemist to the Ordnance, and Lecturer on Chemistry at the Royal
Military Academy at Woolwich.
A few weeks residence in the island of Sky having enabled me to give a general idea of its geological structure, I shall make no apology for offering this paper, however incomplete, to the Society. Want of further opportunities may perhaps for ever prevent me from rendering it more perfect, as it may equally prevent others from visiting that island. Nor is a district of such magnitude and interest, of which the distance is so great, and the inconveniences of climate and ground so considerable, likely soon to offer to others greater facilities than those, which enabled me to draw up this sketch. Should it prove otherwise, my object will at least, in its
