It is a singular fact, that although England produces the finest horses in the world, and though the English people have always fancied they understood their management better than any other nation, yet, lately, not only have we all been astonished by the superior knowledge on this subject of a trans-Atlantic cousin, but what is still more surprising, our sporting men have rushed forwards to pay to Mr. Rarey no less a sum than about 15,000l. for exhibiting...