SHETLAND ISLES.

Here, on the shortest—day, the sun rises 17-1/2 min. past 9 o’clock, and sets 42 min. past 2 o’clock. The nights begin to be very short early in May, and from the middle of that month to the end of July, darkness is absolutely unknown—the sun scarcely quits the horizon, and his short absence is supplied by a bright twilight. Nothing can surpass the calm serenity of a fine summer night in the Shetland Isles.