RECORD: Darwin, C. R. [1878]. Vicia faba. CUL-DAR209.5.33-35. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: 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 volume CUL-DAR209.5 contains materials for Darwin's book Movement in plants (1880).


33

Vicia faba. germinated in Bran— slightly injured (N.B firewood sawdust killed— (make note) black  (over)   slime exuded— Bran smelt acid.— 

Dec. 20th. 1878 8° 50' 3 with cards & shell lac. to last & 10 round circumference with as nearly as I cd effect same amt of shell-lac as aid for affixing cards, effected by putting smearing card & pressing apex of radicle with it & seeing that trace left on.—   (Dec. 21' 10°. F. sliced 4 radicles sliced on Horse-chesnut.)   

Vicia faba. Dec. 21 10° 30' sqr with shell lac. on 2 crooked radicle, but tips perpendicularly down & shell-lac alone on 5 radicles perpendicularly ↓ down— Study Table 54°— on Chimney Piece  57°

(This little oval dab of dried shell-lac. was 1.01 m.m in length & 0.63 in breadth, probably. smallest object which has acted)

(1) card   22d 8° 40' no action

 do  (2) card 

 do  (3)  (Everything else in this paper a failure)

 do  (4) 

for I dare not trust shell-lac as cards have not acted.

(5)→  4° 30' P.m bent at right angles— a small bead of shell-lac on. (ie in 6°) 22d 8° 40' now nearly straight

 22  (6) d 8° 40' no action

 — 8° 40' no action  (7)  }   I cannot understand why none have acted— Is it the very cold night— or germinated in Peat.?

33v

20th 9° 15' a.m. 53° — 12° 55°

34

Dec. 22d 1878. 9°. a.m.

Beans— a little shell-lac put on square & as if card was to be affixed,, then tip of radicle touched with card; but very difficult to put on about same quantity— if tip scraped then more is left & a little bead formed.

(1) card & gum-water 24th 8° 10 card & gum —(25th 4° 30 deflected) 26th 8° a.m decidedly though very slightly deflected

(2)   do 26th 8° no effect from minute bead of shell-lac

(3) card & shell-lac. 24' 8° 10 card & gum (25th 2 4° 30' card dropped off

(4). do Card do 26th 8° a.m can see no shell-lac no effect do 25th 8° am card dropped off quite straight

(5) do card. do 26 8° a.m shell-lac— little bead, no effect do    do do    do

(6) shell-lac. by self 24th 8° 10 card & gum (26th  8° a.m very slightly not deflected.

 24' 8° 10' card  (7) do  & gum— 25th 4° 30' deflected. 26th 8° a.m certainly yet slightly deflected

 26  (8) do the 8° a.m I can see no shell-lac.— anyhow quite straight

 24 (9) do the 8° 10' card & gum (—25th 8° card affixed 4° 30' card slipped, quite straight

(10) do 25' 8° am card fixed

(11) do 25' 8° a.. card

(12) do 25' 8° a.m. card.   } 26th 8° 30' no effect or very slight

(13) do— decayed

 26 (14) do the 8° a.m no effect from shell-lac, or perhaps a trace of curvature.

(15) do  26' 8° am shell-lac disappeared 

1/7 slightly affc

(The whole case very perplexing)

Dec. 23d 8° a.m. no effect on any of the 13, I believe Bean all too dry— they look dry— now put them with tips in water —(24th now grown well— 8° 10' put on card & gum, as above & shell lac on same side on the 13 others, of which some crooked, but tips of none bent —4°. 50' no action Temp of water 64°— (Dec. 25th 8° a.m. no clear effect; they had been kept, as well as those on Back on table all night & temp. certainly low, perhaps too low.— Several had been germinated in sawdust, & this though not fir-wood, had injured those long kept in it.

/over

34v

Bean Radicles

Dec. 24' 1878

  8° 40'

(1) about atom of shell-lac (26th 8° no clear effect

 (  do  )  (2) do 

 (  do  )  (3) do 

(4) do card & shell-lac —(25' 8° Perhaps a trace of Effect— 4°. 30' deflected (26th 8' a trace of curvature

(5)   card & shell-lac   do do — 25' 4° 30' deflected (26th 8° slightly deflected)

(6) atom of shell-lac (26th 8° no effect)

 (  do  ) (7) atom of shell-lac 

(8) atom of shell-lac   (  do  )

(9) atom of shell-lac   (  do  )

(10) atom of shell-lac (  do  )

(11) card & shell-lac 25' 8° am do (do)

4° 50' no action Temp of water 67°!

2/11 straight

(with cards 2/3 very slightly deflected) 

 4.5  & 11 shellac & card

over

35

Beans with squares

Decr 25'

  square fixed at 8° 40' a.m— 2 affixed with gum, rest with shell-lac.

(1) Bean of previous year with god radicle — gum-water— Old Bean germinated in damp Peat 4° 30' little deflected (26th 8° deflection very doubtful

(2) do old Bean — but shell-lac. (26th 8° I think. has been deflected)

(3) old Bean., shell-lac (26th 8° certainly a little deflected)

(4) new Bean,. germinated in water— gum-water— 26th 8° perhaps a trace of deflection

(5) new bean, germ in water affixed shell-lac— 4° 30' I think little deflected— 26th card dropped off

(6) new Bean shell-lac — 26th 8° card dropped, but I think has acted a little

(7) new Bean shell-lac (26th 8° deflection if any coincide with Sachs

(8) new bean shell-lac. 4° 30' I think little deflected 26' 8° no effect

3 or 4 / 8 very slightly deflected

on the 2 papers together 6/18 affected, but only slightly & slowly.


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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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