A curious and interesting point connected with the introduction of sheep into the Highlands may be mentioned here:--By means of this innovation, the whole aspect of the country seems to have been changed. Previous to that, the whole country seems to have borne a universal aspect of blackness, rarely relieved by a spot of green, arising from the fact that almost the only product of the mountains was dark-brown heath. Captain Burt and others who visited the Highlands previous to the extensive introduction of sheep, indulge in none of the raptures over Highland scenery, that the most common-place and prosy tourist thinks it his duty to get into at the present day. They speak of the country almost with horror, as a black howling wilderness, full of bogs and big boulders, and almost unfit for human habitation. They could see no beauty in the country that it should be desired; it was a place to get out of as soon as possible. How far these sentiments may have been justified by facts it is impossible now to say; but it is the almost universal assertion by the writers in the _Old Statistical Account_, that the appearance of the Highland hills was rapidly changing, and that instead of the universal dark-brown heath which previously covered them, there was springing up the light-brown heath and short green bent or strong grass so well known to all modern tourists. If the Highland hills formerly bore anything like the aspect presented at the present day by the dreary black wet hills of Shetland, the remarks of Burt and others need not cause astonishment. But as the great outlines and peculiar features of the country must have been the same then as now, we suspect that these early English adventurers into the Highlands wanted training in scenery or were determined to see nothing to admire. But, indeed, admiration of and hunting for fine scenery seem to be quite a modern fashion, and were quite unknown to our ancestors in the beginning of last century, or were confined to a few crazy poets. Men require to be trained to use their eyes in this as in many other respects. There can be no doubt that the first impulse to the admiration of the Highlands and Highlanders was given by the poems and novels of Sir Walter Scott; it was he who set the sheepish stream of tourists agoing, and indirectly to him many a Highland hotel-keeper owes a handsome fortune. The fact at all events seems unquestionable, that the extensive introduction of sheep has to a large extent changed the external aspect of the Highlands.