Excerpt from The Book of the Rothamsted Experiments: Issued With the Authority of the Lawes Agricultural Trust Committee

In this edition I have carried on the tables for a further decade, and made the necessary alterations in the text. Some of the deductions drawn in the first edition have required modification, but no great change has been made: the picture is essentially as Mr Hall painted it. Two new chapters have been added: one by Mr Hall, on the secondary effects of manures on the soil, gives a connected account of the important investigations he carried out here on this very difficult and important subject. The other chapter, by myself, contains a summary of the investigations made during the past ten years, and still continuing, on the biochemical processes in the soil.

I hope when conditions become more normal that it will be possible to arrange for a proper statistical survey of the mass of valuable data accumulated at Rothamsted. The greatest pains are taken to ensure the reliability of the data, and I cannot help thinking that the application to them of modern statistical methods would yield information of high value both to the man of science and to the practical agriculturist. We have not yet learnt anything like all the lessons the Rothamsted fields can teach us.

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