Letter | Published:

Soil Perfusion Apparatus

Nature volume 158, page 674 (09 November 1946) | Download Citation

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Abstract

IN view of Audus's communication1, which describes a modification of my original design of perfusion pump, it is perhaps relevant to note that I simplified the apparatus myself more than two years ago. The simplified apparatus was, as Audus's, actuated by unidirectional air flow and was used for months in experiments that demanded a control of composition of the inflowing gas. It also incorporated the idea of using air-flow through a capillary to regulate an air-pressure difference. This modified design is described in an addendum to some forthcoming papers by Dr. Quastel and myself2.

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References

  1. 1.

    Nature, 158, 419 (1946).

  2. 2.

    Biochem. J., in the press.

  3. 3.

    J. Agric. Sci., in the press.

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Author information

Affiliations

  1. Biochemistry Department, Rothamsted Experimental Station, Harpenden, Herts.

    • HOWARD LEES

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DOI

https://doi.org/10.1038/158674b0

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