Parliamentary Papers, Band 21 |
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From these lists , the vegetation has been classified into eighty - three distinct types of forest , scrub , shrub heaths , grass heaths , herb meadows , bogs and so on . One chapter deals with climate as it affects vegetation between ...
From these lists , the vegetation has been classified into eighty - three distinct types of forest , scrub , shrub heaths , grass heaths , herb meadows , bogs and so on . One chapter deals with climate as it affects vegetation between ...
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From the Russian literature it appears that a study of the so - called humic acid , fulvic acid , and humin fractions of soil organic matter from ecologically distinct soil types may provide more useful information on the nature of the ...
From the Russian literature it appears that a study of the so - called humic acid , fulvic acid , and humin fractions of soil organic matter from ecologically distinct soil types may provide more useful information on the nature of the ...
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The bird populations of about 25,000 yards of ten different types of field boundaries have been counted . The types consisted of hedgeless banks , post and wire fences , and eight types of Hawthorn hedge under different methods of ...
The bird populations of about 25,000 yards of ten different types of field boundaries have been counted . The types consisted of hedgeless banks , post and wire fences , and eight types of Hawthorn hedge under different methods of ...
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196263 | 1 |
Bilharzia Research Unit | 16 |
Overseas Liaison | 17 |
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