To many this may seem a cruel sport, and in a certain sense it assuredly is; but my young readers must remember that cougars and other wild beasts are a menace to civilization in the far West, and they have been shot down and killed at every available opportunity. More than this, as I have already mentioned, Theodore Roosevelt is more than a mere hunter delighting in bloodshed. He is a naturalist, and examines with care everything brought down and reports upon it, so that his hunting trips have added not a little to up-to-date natural history. The skulls of the various animals killed on this trip were forwarded to the Biological Survey, Department of Agriculture, Washington, and in return Mr. Roosevelt received a letter, part of which stated:--