Traces of contemporaneous volcanic action exist in the Orcadian island of Hoy.
Until the middle of the 19th century the methods of agriculture were of a primitive character, but since then they have been entirely transformed, and Orcadian farming is now not below the average standard of the Scottish lowlands.
As seen from the west it rises abruptly from the sea, presenting in this respect a marked contrast to the rest of the isles of the Orcadian group, which as a whole are low-lying.
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