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physical characteristics and silvicultural importance of podsol soil. 

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A NEW DEVICE FOR TAKING MAXIMUM AND MINIMUM SOU. TEMPERATURES IN FOREST 



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THE MARGINAL DITCH AND SWAMP DRAINAGE FOR FORESTRY. JoUT. Forestry 25 : 



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SUBCOMMISSION 5 OF THE INTERNATIONAL SOCIETY OF SOIL SCIENCE : THE STUDY 



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soil acidity preferences of some eastern conifers. Jour. Forestry 20: 

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the soil in relation to forestry. Minn. Forester 2 (7) : 75-78. 1909. 



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