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Technical bulletin No. 166 (March 1930) / Circular No. 120 (Aug. 1930)/ Circular 125 (Sept. 1930)/

Autor: Samuel T. (Director) Dana
Editorial: United States Department of Agriculture
I.S.B.N:
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Also: Bulletin No. 407 (April 1934)/ Bulletin No. 420 (Aug. 1934). Several bulletins and circulars related to forestry bound in 1 volume. B&w illustrations. Contents: Timber growing and logging practice in the northeast; growing trees for forest planting in Montana and Idaho; experiments in the use of fertilizers in growing forest planting material at the Savenac nursery; rate of growth of second-growth southern pines in full stands; timber growing and logging practice in the southern appalachian region; suitability of brush lands in the intermountain region for the growth of natural or planted western yellow pine forests; yellow poplar characteristics, growth and management; watershed and other related influences and a watershed protective program; growth in selectively cut ponderosa pine forests of the pacific northwest; poplars, principal tree willows and walnuts of the rocky mountain region. A few pages loose. [Libro en Español / Book in Spanish]