Vol. 3 No. 2 (1955)

Papers

• Regional development and agricultural extension

  J.A. van Beukering

  93-99

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• Some problems concerning aerial photo-interpretation in soil survey.

  P. Buringh

  100-105

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• Optimal depth of drainage.

  J. Wesseling, W.R. van Wijk

  106-118

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• Determination of soil permeability in situ.

  H.J. Timmers

  119-126

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• A mineralogical investigation of some Gold Coast soils.

  R. Hamilton

  127-134

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• On the significance of some characteristics of egg production in breeding utility breeds of poultry.

  M. van Albada

  135-154

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