Many differential characters have been pointed out in the skulls and teeth of bears, and to a less extent, in the claws; but while these undoubtedly exist, the conclusions to be drawn from them are uncertain, for the skulls of bears change greatly with age, and the constancy of these variations, with the values which they should hold in classification, we do not yet know.

* * * * *

It is not improbable that the reader may leave this brief survey with the feeling that its admissions of ignorance exceed its affirmations of certainty, and such is indeed the case, for the law of scientific validity forbids the statement as fact, of that concerning which the least element of doubt remains. But the real advance of zoological knowledge must not thereby be discredited, for it is due to those who have contributed to it to remember that little more than a generation ago these problems of life seemed wrapped in hopeless obscurity, and the methods of investigation which have led to practically all our present gains, were then but new born, and with every passing year doubts are dispelled, and theories turned into truths. There was no break in physical evolution when mental processes began, nor will there be in the evolution of knowledge as long as they continue to exist.

Arthur Erwin Brown.

[Illustration: TROPHIES FROM ALASKA.]

Big Game Shooting in Alaska

I.

BEAR HUNTING ON KADIAK ISLAND

Early in April, 1900, I made my first journey to Alaska for the purpose of searching out for myself the best big-game shooting grounds which were to be found in that territory. Few people who have not traveled in that country have any idea of its vastness. Away from the beaten paths, much of its 700,000 square miles is practically unknown, except to the wandering prospector and the Indian hunter. Therefore, since I could obtain but little definite information as to just where to go for the best shooting, I determined to make the primary object of my journey to locate the big-game districts of southern and western Alaska.

My first two months were spent in the country adjacent to Fort Wrangell. Here one may expect to find black bear, brown bear, goats, and on almost all of the islands along the coast great numbers of the small Sitka deer, while grizzlies may these are the black, the grizzly, and the glacier or blue bear.[3] It is claimed that this last species has never fallen to a white man's rifle. It is found on the glaciers from the Lynn Canal to the northern range of the St. Elias Alps, and, as its name implies, is of a bluish color. I should judge from the skins I have seen that in size it is rather smaller than the black bear. What it lives upon in its range of eternal ice and snow is entirely a subject of surmise.