This beautiful tree is the most alpine of all North American Spruces, growing in the Rocky Mountains of Colorado, at an altitude of 12,000 feet. It grows from eighty to one hundred feet high, with a strict pyramidal habit and pleasant glaucous coloring. The wood is white, soft, free from knots and resin, easily worked, and of great value. This species will be found an invaluable acquistion for the Northern portions of the United States, Canada, and the North of Europe. Even at St. Petersburg it has proved perfectly hardy.