RECORD: Darwin, C. R. Geological diary: Recalculation of Port Desire plains. [1.1834] CUL-DAR34.35-35a Transcribed by Kees Rookmaaker, edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed from the microfilm by Kees Rookmaaker, corrected and edited by John van Wyhe 2.2011. RN1

NOTE: This document, part of the largest scientific document composed by Darwin during the voyage of the Beagle, is written mostly in ink. Marginal notes are here integrated into the text.

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Reproduced with the permission of the Syndics of Cambridge University Library and William Huxley Darwin.

See the introduction to the Geological Diary by Gordon Chancellor.


35A

30.01 + Capa = 30.04

29.773 29.690 + capa = 29.693

72 D 21d (H)

β = 1.477700    
  1.472654    
  0.005046 = 7.702947  
    4.816750  
    2.519697 = 330 feet

good measurement of
high Plain (B) direct from the sea: —

35A verso [blank]

35

Recalculation of Port Desire plains.—

21st [January 1834] — 30.03. D.74 + Capa 30.04    
  29.778. D.do + capa 29.782    
    fig. β = .4777.00    
      .473954    
      0.003746 = 7.573568  
      C= 0  
        4.819400  
        2.392968 =247. feet

Plain at foot of low hills. —
245 to 256

High plain 320 - 330

29.778 ... 29.782 Lg = 1.473954  
29.690 29.693 = .472654 B
Therm. D. 74 146   0.001300  
    = 7.113943 21st [January 1834]
    4.818510  
    1.932453  
    = 85.6  
       

Height of Plain. north of two hills: Above plain at foot

247. + 85 = 332. —

30.293 + Capa 30.308 Temp 120 148  
30.030 do 30.040    
  β = 1.481557  
    1.477.555  
    0.004002 7.602277
      4.814960
    1st measurement 2.417237 = 261 feet
       

Measurement of Plain above the First —

35 verso

(D

D. —

30.328 56 + Cac = 30.344  
30.065 55 do = 30.076  
  fig B = 1.482073  
  = 1.478220  
    0.003853 = 7.585799
      4:803210
      2.389009
  Jan 2d [1834]   = 245 feet

Same plain as (C): good measurement: —

(D)

D

30.41 + Capa 428 30.428 (55)  
30.067 30.078 (55)  
Same as (B) = 1.483159    
  1.483273    
  1.478249 (E)  
  0.005024 = 7.701050  
    4.802290  
    2.503340  
    = 318 = feet: —  

Measurement ?? But very bad: direct from sea. —

Jan 2 [1834]

(C. Plain)

30.492 + Capa = 30.511 D49  
30.214 + do = 30.228 D49  
  1.48456    
  1.480410 F  
  0.004046 = 7.607026  
    4.796750  
    2.403776 = 253 feet
       

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

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