RECORD: Darwin, C. R. [1873]. Phosphate of Ammonia 1 gr to 300 oz. CUL-DAR56.10-11. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Text prepared and edited by John van Wyhe. RN2

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. The volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).


10

Abstracted

(10

Phosphate of Ammonia 1 gr. to 300 oz — (very young leaves) (9)

( July 8th)

(1) water 8º 50' (10º 9' 7 inflected) (11º 25' do) (1º only 2 inflected, the others sub-inflected)

5º 7' ( with 3 very slightly sub-inflected) (July 9th 10º 35' perfectly expanded.)

Phosphate 8º 43 [+] 17 (10. 8' [+] 17 [=] 25 all except 8 inflected)

11º 24' [+] 17 [=] 41 all but 8 inflected most of them closely)

(1º do (5º 10' beginning to reexpand (a paler leaf)

(July 9th. 10º 35' almost fully expanded)

(2) Water 8º 50' (10 10', O) (1º, O) (5º 10', O) (July 9th 10º 35', O)

14 [+] 12 [=] after 25'

(at 9º 12 great inflection in all four Phosphate leaves.)

Phosphate 8º. 45' (10º 10' about 24 inflected) (11º. 25' do)

(1º about same) (5º 10' all reexpanded, except outer discals) (July 9th 10º 35', do)

(3) water 9º. 45' (11º 26' [+] 15 [=] 41 2 inflected)

(1º 2 inflected) (5º. 10', the 2 almost rexpanded.

(July 9º   10.º 40' fully reexpanded)

(a) see Back

Phosphate 8º 46' palish leaf. (10º 10'  all but 5 inflected, though a few only sub-inflected (11º 27' do) (1º do) (5º. 10' all outer ones reexpanded)

(July 9th. 10º 40', sub-marginals alone sub-inflected)

Large leaf

(4) Water 9º 45 (11º .30    3 inflected at distal end & 7 in group  over pedicel.)

   (1º, do) (5º. 10' reexpanded) (July 9th 10. 40' fully reexpanded)

   Phosphate 8º 48' (10º 12'    all but 3 inflected) (11º 30' do) large leaf 

   (1. now 6 marginals not inflected) (5º, 10' many marginals reexpanded)

(July 9th    10º 40    sub-marginal & discals still firming a ring, but reexpanding)

Abstracted

10v

(a) Nor 3. had 236 tentacles less 5 = 231

Nor 4 had 217 ― less 3 = 214 I have added to best of ab.

One gr of Phosphate of Am to 100 oz, gives for 1/2 dram 1/1600 to leaf; & as here it was 1 gr. to 300 oz we have 1/4700 given to each leaf.

Then for leaf nor. 3 we have as follows

231 [x] 4800 [=] 1,108,800 or 1/1,108,800 of a grain to each gland

For leaf nor 4 we have

214 [x] 4800 [=] 1,027,200 or 1/1,027,200 of a grain

(Each leaf had in this experiment 1/8000 of a grain of the Phosphate given it, (no no no) & the dilution was by weight as 1 of the Phosphate to 218,750 of water ; & this quantity & dilution insufficient.) This refers to the 1 gr to 500 oz of water

11

Abstracted

(11

July 8th    Phosp. of Ammonia 1 gr to 300 oz of water    9A

(5) Water 11º 18' (1º about 14 or 15 chiefly shorter marginals inflected)

5º 12', a multitude of tentacles & whole lamina of leaf inflected, Could I have put in Ph. of Ammonia — I never saw such a case

(July 9'    10º 40; still rather closely inflected

   Phosphate 11. 14'— (1. trace of inflect of outer discals & inner marginals

   5º 15    no inflection — could I have put in water in this glass ??

   July 9th 10º 40 fully expanded

I was unwell when I prepared these two specimens

(6)    water 11º 18' (11º 23' a good deal of inflection) (11º 30' extreme marginals alone not inflected.)

   (1º 5', 1 inflected) —  5º 12'    this one straight, but the tentacle on both sides a little inflected, the leaf crooked at first

   (July 9th. 10. 40 same state , leaf seem permanently crooked

   Phosphate    11. 14'— (11. 23' [-] 14 [=] 9 a good deal of inflection) 11. 30 the extreme marginals alone not inflected.) (1. 5' about 23 outer ones not inflected.) (5. 15' considerably reexpanded)

(July 9th    10º 40', almost fully reexpanded)

—July 8th a very warm day & so the leaves acted so well.

11v

300 [x] 8 [=] 2400 [x] 2 [=] 4800


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

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