Vol. 13 No. 1 (1965)

Papers

• Animal behaviour in the sub-tropics. I. Heat tolerance in relation to grazing behaviour in sheep.

  M.M. Shafie, M.A. Sharafeldin

  1-5

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• Moisture indication on grassland by vegetation and soil : a comparison of maps.

  L.G. Kop

  6-20

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• Factors influencing the sodium content of meadow grass.

  C.H. Menkens

  21-47

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• Copper metabolism in milch cows. II. Some precautions to be taken when working with radio-copper.

  W.T. Binnerts

  48-52

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• The determination of magnesium with titan yellow; masking interferences with phosphates.

  J.C. van Schouwenburg

  53-56

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• Measurement of thermal conductivity in situ in mixed materials, e.g. soils.

  A.R.P. Janse, G. Borel

  57-62

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• An e-function nomo-gram, with special reference to the determination of equilibrium-moisture content and capillary conductivity of soil samples.

  P.T. Stol

  63-71

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• Poly-phylla fullo L. (Col., Melolonthidae) in the dunes.

  H.F.H. Blankwaardt

  72-80

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