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Cover: Strongly developed podzol (Haplorthod) on a coarse-sandy river dune in the province of Limburg, the Netherlands. Due to the coarseness of the sand, the E-horizons is thicker than usual in this area. All horizons show mottles where the organic matter has been depleted by microbial activity (possibly actinomycetes). This depletion is restricted to parts where stratification has been destroyed by roots. This microbial depletion of SOM, although similar to that at the E/Bh boundary, is not hindered by the presence of Al or Fe-SOM compexes. The vertical SOM accumulation is related to a pine root. Please see p.1344–1356, "Comparison of Michigan and Dutch Podzolized Soils: Organic Matter Characterization by Micromorphology and Pyrolysis-GC/MS" by Peter Buurman, Antoine G. Jongmans, and Klaas G. J. Nierop.