is apart from my present object, which is to show that sport trains the eye. As a boy, roving about the hedges with my gun, it was my especial delight to see Mercury, because one of the great astronomers had never seen that planet, and because in all the books it was stated as difficult to see. The planet was favourably situated, and I used to see it constantly after sunset then, pale, and but just outside the sunset glow, only a little way above the distant hills. Now it is curious, to remark in passing, that as the sun sets behind a hill the slope of the hill towards you is often obscured by his light. It appears a luminous misty surface, rosytinted, and this luminous mist hides the trees upon it, so that the slope is apparently nothing but a broad sweep of colour; while those hills opposite the sun, even if twice as distant, are so clearly defined that the smallest object is evident upon them. Sometimes, instead of the mist on the western hill, there is a bloodlike purple almost startling in its glory of light.
There have been few things I have read of, or studied, which in some manner or other I have not seen illustrated in this country while out in the fields. It is said that in the Far West, on the level prairies, when the snow covers them, you see miles and miles away, a waggon stopping; you hurry on, and in half a day's journey overtake it, to find the skull of an ox—so greatly has distance and the mirage of the snow magnified its apparent size. But a few days since I saw some rooks on the telegraph wires against a bright sky, but as I approached they flew and resolved into starlings, so much had the brilliant light deceived me. A hare sometimes, on the open ground, looks at a
