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


10

Abstracted

(10

Phosphate of Ammonia 1 gr. t 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 9. 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 9.. 45' (11O 26' [+] 15 [=] 41 2 inflected) (1O 2 inflected) (5O. 10', the 2 almost rexpanded.

   (July 9.    10O 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 . 9. 45 (11O .30    3 inflected at distal end & 7 in group  over pedicel.)

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

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

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

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

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 t 300 oz of water    9A

(5) Water 11O. 18' (1O abut 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 11O 14'— (1O 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 11. 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. 10O 40 same state , leaf seem permanently crooked

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