A statement has been published to the effect that a large supply of guano has been found on an island in the Indian Ocean, between Mauritius and Calcutta, and that some of the samples sent to England are of a superior quality. The island is stated to be twenty miles long and seven broad, and covered in every part. Should the expectations thus raised be fulfilled, it will be a serious matter for Peru, and a happy thing for our farmers, as the price of guano will no doubt be reduced thereby.