RECORD: Darwin, C. R. n.d. 'R. Wedgwood cd detect or hear of no evidence furrowed land changing'. CUL-DAR63.92. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 6.2021. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.


1

R. Wedgwood cd detect or hear of no evidence furrowed land changing. – believed to be very ancient

Letters from 2 farmers that no difference in distinctness of furrow in upper & lower part of slopes - & a strong belief that the crown & furrows last for generations.

N. Wales – field ploughed 50 or 60 years ago; in furrows at top of slope mould 2 1/2 & at bottom 4 1/2 – furrows moderately inclined for [allowing] 1/2 inch more on ridges than in furrow Many tried of the latter point.

In a field ploughed about 65 years before with furrows running down slope – furrows at top 4 1/2 inches deep & at the bottom when they have nearly disappeared only 1 inch.

The slope of the field was 15° facing N. E – furrows 7 ft apart. The depth of furrow or level grow above the slope 4 to 3 1/2 deep. On another slope 80 years ago of 15° facing S. W. furrows scarcely perceptible at base but on level ground

2

at base same furrows 3 1/4 & 2 1/2 deep – On another short slope of 10°, furrows at top 3 1/2, at the bottom 1 1/4 to 1 1/2 deep)

(Leith Hill field not ploughed for at least 24 years.

Slope moderate

Depth of furrow at LH before much slope

Depth of middle of slope

Length of bottom of slope

Furrow 1

4

3 3/4

3 1/4

 

3 8/11 near flat/

3 3/4

4

2

*4 – near top

 

 

 

top 3 1/2

0

3

3

near top 3

 

 

 

top 4

 

 

 

top of slope 3

0

3

4

14°

 

13 1/4 less deep at bottom

So furrow 3/4 inch shallower at bottom

Depth of mould on ridge 2 3/4 to 4 inch

a furrow 3 1/2 to 5 inches


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 25 September, 2022