Sheep, one of man's earliest domesticated friends, have provided meat, milk, and clothing
for countless millions from the dawn of civilization to the present. In spite of the prominent role played by sheep in the history of our civilization, modern technology and economic forces pose serious problems for the future...
The boreal forest of North America is especially liable to destruction by fires. It is a region in which forest fires have been extremely common and wide spreading. Lightning is certainly one of the causes of fires but man, both aboriginal and white, has been an even more prolific source....