. Canadian forestry journal. Forests and forestry -- Canada Periodicals. ii8 Canadian Forestry Journal, March, iq20 were attained Avitliin lo''. allowinj^ for a ])ossiblc lo'A error in estimate. (c) Pure spruce loo years old from natural regeneration on a comjjart- ment in the forest of Ouhans (first Jura I'lateau), altitude 2,300 feet. Per Acre. Diameter Breast High No. of Vol. Cubic Approximate* Inches Trees Metres Board Ft. and Cords 10 00. S 16 :30,f)00 , 22 14,500 Totals 64,700 Per Acre. Diameter Breast High Xo. of \'ol. C'uli
. Canadian forestry journal. Forests and forestry -- Canada Periodicals. ii8 Canadian Forestry Journal, March, iq20 were attained Avitliin lo''. allowinj^ for a ])ossiblc lo'A error in estimate. (c) Pure spruce loo years old from natural regeneration on a comjjart- ment in the forest of Ouhans (first Jura I'lateau), altitude 2,300 feet. Per Acre. Diameter Breast High No. of Vol. Cubic Approximate* Inches Trees Metres Board Ft. and Cords 10 00. S 16 :30,f)00 , 22 14,500 Totals 64,700 Per Acre. Diameter Breast High Xo. of \'ol. C'uliic Indies Trees Metres 10 16 22 Approximate Board Ft. and Cords 7,800 31,800 15,400 7,6 (d) go7c fir, 10% spruce, 100 years old from natural regeneration on a compartment in the forest r>f St. Point (third jura Plateau), altitude 3,280 feet. Totals 55,000 These four compartments average almost 71,000 board ft. per acre and indicate what can be attained under proper forest management, in 100 years on a maximum with thrifty, vigorous stands of silver fir. Editor's Note.—The average yield of natural balsam fir and spruce stands in Eastern Canada is from 5,000 to 10,000 board feet per acre. An Article for All Planters and Shade Tree Owners Relative Value of Shade Trees, with Special Reference to Rapidity of Growth ^y F. E. Buck, Central Experimenial Farm, Ottawa The sole object in planting shadj trees is not merely to obtain shade: indeed one main object is to complete the architecture of the street or hous: surroundings, as the case may be. Quick realization of the objects in planting a shade tree is of course de- sirable, but rapidity of growth is gen- erally looked upon as an undesirable characteristic of a shade tree. The reason is obvious perhaps. Rapid growth is generally correlated to weakness of wood and tendencies to decay, and therefore a short-lived tree is the result. A tree is a living beau- tiful thing, and
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