(1

Dionæa 1861

Sept 7 (yellow worsted)

Touched Hair in middle at 9º 8' shut instantly. Spikes cross & make a net, which would allow any very minute fly to escape – sides of leaves convex. (Sept 8th 8º 30' nearly open again.)

(Red worsted)

Sept 7 9º 16' 30" Put on bit of abdomen of Hairy Long Legs, all dry round; touched surface of leaf with cut off end of abdomen carefully, & did not touch Hairs.

(Sept 8th 9º. A m. no effect.)

(2

Sept 7 (Purple)

9º 22' Drop of pure water on leaf

(Sept 8th 9º A m. no effect)

X

(Dark Green)

Sept 7 9º 27' irritated with needle

(Sept 8 9º A. m. no effect)

X

Stick with Blue Head I

Sept 7 9º 29' drop of Sol. of C. of Amm (3' gr. to 1 oz) on same corner as distilled water

(Sept 8' 9º A.m. no effect.)

X

Touching – irritation with needle pure water & sol. of 3 gr to 1 oz no effect (p. 3 & raw–meat no effect)

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Sept 7 10º (Red–stick I.)

Put atom of thin thread damp on end of needle & most slowly tried to leave it sticking on a Hair, but leaf clasped instantaneously (Sept 8' 9º still shut) X

Sept 9 9º A. quite open – Last evening at 4º 30' half open; so that partly opened in 30º 31' & quite in 47º.

(Red–Headed Stick IIII)

Sept 7th 10º 15 a transverse cut to midrib no hair being touched caused contraction. X

I then cut out piece longitudinally; & the piece which had no opposite edge curled beyond the medial line Sep 8th 10º had opened a very little.

Sep 8 10º 10' put in big fly to see whether secretion. Sept 9 9º A.m. secretion very acid (a)

(Red–Head stick II.)

Sept 7th 11º 9' – put on bit of raw meat on leaf.

(Sept. 8. 9º. A m. no effect) X

[3v]

(a) I pulled fly from between closed leaf & secretion very acid! Good.

Sept 15th 16 10º A. m. still much secretion intensely acid – put in little bottle with distilled water & put in another fly.

(After 9 days)

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Blue–headed stick I

Sept 8th I blew as hard as I could out of fine point close to Hairs & no effect – dropped large drop of water from same height no effect X

8º 45' managed to put on but of Human Hair much longer than the bit, which excited Drosera.– Sept 9' 9º A m. This leaf had not closed.

Filament hard-blowing & drop of w. from height

Sept 8 Green–Head stick III put on fly & touched Hair at 9º 10; touched with Hair in Handle required a considerable touch & then closed suddenly – X

Sept 9th 9º Leaf open & fly loose!!!

Sept 8th 9º 40' put another Bit of Hair on leaf by that with Daddy Long Legs.

Sept 9th 9º Leaf shut!! it was not shut last night at 4º 30 (ie after 7º) I see that a Fly has been caught naturally.

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Sept. 7th In a leaf cut transversely which made it close Filament colourless – cells I think not spiral

The tip of Hair formed of ends of several cells. [sketch] joint at base.

This Hair came from leaf which when cut moved.

no segregated matter plain within Hair.

The tortoise–shells filled with Homogenous pink fluid – The cells over surface of leaf, round the tortoise–shells with many large grains of chlorophyll.

C of Amm then in few minutes in C. of Amm. 3 gr to 1 oz broke up into mass of granules, – a most wonderful change; & subsequently the pink contents of tortoise became dark & broke up into coarse granules – so that large globules of chlorophyl became finely granular & homogeneous contents of tortoises became coarsely granular or globular. Filaments Hairs in C. of A. segregation slowly running up from root

When leaf dies it closes with a spring; so that perhaps vitality alone keeps it open.

When leaf closed flat Hairs depressed. Hence joint.

(bis 5

Sept 8 carefully watched the large green globule of chlorophyll in minute dose C. of Amm (3 gr to 1 oz) they became opake & at the same time white contents of white cells & lost their outline & became granular.

In the leaf in which a portion had been cut off – The Hair was in same colourless state & not spiral but in tortoises there was much segregated, whether owing to closing of leaf I do not know

The leaf when first closes has 2 side convex. if fly be caught side flatten & cover closely & tips became reflexed, so that the spikes after crossing show parallel pressed together – if Hair has been touched & nothing within good, as cork, leaf slowly opens without spikes becoming parallel with tips reflexed. They do not secrete when cork put in another difference –

Can a spiral stalk of filament [certain] be done to its state of vigour ??}

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Brown worsted

Sept 9th 9º A.m

Last night a fly was caught in this leaf which includes fragment of Hair to measure.

Sept 9th 9º A. m. Blue Headed stick I with pin on leaf – In Putting in bit of cork & I almost certainly (?) did not touch any hair, yet leaf snapped – This includes bit of Hair to be measured.

Sept 10' 9º – Leaf 2/3 open with cork

Sept 11 9º nearly open.

Sept 11' 6 P.m. quite open

The Hairs in Handle which caused movement yesterday projects 4/10 of an inch – say rather less than 1/2 inch.

Sept 8th 9º. 45' Red worsted – Touched with thin Ladys Hair Held one inch long & hit it laterally with

(a) tip by rather slow movement – very slight impact closed

Sept 9 10º Yellow Worsted Emma' Hair held dangling 2 1/2 inches had no effect, but held it one inch when it would support itself, after 2 or 3 touches by a lateral push started it & leaf closed– Piece of cork within:

(B) Sept 10' 5º P.m 2/3 open again

Sept 11 9º more open

[6v]

15th 9º A.m I find that a fly has been naturally caught.– This show how often a leaf moves & will be good to show different in Closing

(a) Sept 10th 9º A.m. Leaf 2/3 open. I can touch with Hair in Handle, through the crossed spikes & the leaf closed instantly– irritability not at all lost.

Sept 10th 5º Pm. slightly open again

Sept 11 9º A m nearly open 2/3 – Sept 11 6º P.m quite open. Sept 12th 5.30 P.m. touched Hair & closed instantly 14 12º open again I daresay

(B). Sept. 11. 6º. P.m. quite open.

7

Sept 9th 10º 10' Purple worsted.

Pinches of flour let fall from 2 or 3 inches did not cause movement – but thick dangling cotton-thread, did cause leaf to clasp. Sept 10th. 9º A m. 2/3 open again.

Sept 11th 9º 2/3 open

Sept 11. 6º Pm nearly quite open.

The leaf which was not open with fly placed within Sept 8' 10º A.m has now more fluid out which is acid. The fly put in N. of Silver made a cloud; I then inserted atom of cotton-wool & put this in N. of Silver & made white cloud. The fluid is slimy - Surely there could not have been so much salt in half a fly, as to have produced so large a cloud.

Sept 10th 10º A m. Put fly in leaf with wine

Sept 11. 5º 30 (Red & yellow worsted) I see tall leaf in middle has opened with dead fly–; the leaf was closed when plant came or soon after.

Sept 12th 8º 30', touched & closed very slowly.

14th 12º open again

[7v]

Sept 9th touch with hair closed

Sept 10' half open

—touched in this condition – instantly closed

Sept 10th 5 Pm. slight open

Sep 11. 6' Pm quite open

Sept 12 closed instantly

14: open again

15 fly Closed

 6 days

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Sept 15 9º 45' Green–Headed stick III.

Scratched gently between 3 Hairs & certainly did not touch them; but leaf closed. certain. Sept 16' 9º. 15' partly open.

Sept 15 Red & purple

9º 55' put leaf in distilled water in 1º 10' no closing. – at 11º 15' put in sugar & water not very strong– Spikes touched in 2' 30" in 3' crossed at 11º 19' put in water again for 20' did not open – Put in sherry wine for 9' did not open: then washed it – Sept 16' 9º Am This leaf still closed.

Sept. 15' a Bit of my Hair 1/10th of inch long left on filament for 1º 30' caused no movement – other & smaller bits were left on for 24º & no caused no movement.

A leaf from which I cut off one whole side has now other side largely curled over, showing contraction has gone on – it has now thrown itself at ∟º to stalk.

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Sept. 15th 11º A m. Examined leaf in which fly was put Sept 10th 10º Am.– Fly acid– whole neighbouring surface Humid. (N.B this leaf was rather imperfect & for some hours after fly put on could not close closely, but now had two sides pressed closely with wonderful force ∴ not elasticity) – The tortoise shells under & near fly had contents of each cell segregated into numerous sphere pink & colourless – The tortoise–shells remote were not in this state – The sensitive filament had here & there a cell with pink fluid & some little segregation, beneath the upper joint at base, cells gorged with red fluid.

The segregation in tortoise may be due to act of secretion – I saw slow & doubtful changes in shape in matter in filament

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Sept 15 – Purple Worsted.

20 min of chloroform in large Bottle imperfectly closed in 1' made leaf begin to close in 3' spikes crossed & leaf close – movement so slow as to be insensible.– Leaf darkened & footstalk & greatly injured probably killed. In 2 or 3 Hours seemed quite burnt up & dead

Simple closing of Leaf does not apparently cause any secretion.

Red stick III

Sept. 16. 9º 15' put good–size fly squashed on leaf without touching Hair.

Sept 17. 11º 45' no secretion, no closing – touched Hair & leaf closed 13' 12º close shut 19' do 21st. still closed

Red & yellow worsted

Sept 16th 9º 15' – put fly on old leaf which had caught fly – when much irritated it closed very little on one side

Sept 17. 12º not more closed 18' do

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Sept. 16th 9º 30'– Yellow–Headed stick. Filament

Put large drop of sol. of C am. (5 gr to 1 oz) on sensitive Hair & it ran over leaf – & Leaf. The sol. was good for it smelt.

12º no effect – Touched Hair & leaf closed.

Sept 17 11º 45 partly open again 18 12º nearly quite open 19th quite open

Yellow & Brown.

Sept. 16 9º 45' put leaf internally some days closed over Fly with sherry wine. 11º 45; had not opened. – washed it & left it.

Sept 16. 9º 50' Yellow worsted. – put ball of blotting paper in leaf & touched it & it closed.

Sept 17 11º 45' partly open 18 12' still more open (a)

Sept 16. 10º Blue Headed IIII. Put long piece of Hairs 12/100 long on Filament. Took away Hair & put on Cork & touched. This experiment goes for nothing as leaf not sensitive. X

[11v]

(a) 19th 12º shut, but I found little live fly in; & took out blotting paper which was dry. 21 nearly open.

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White Stick & blue pin over footstalk

Sept 16' 10º 9' put leaf in small Bottle with lump of Cyanide of Pot – bottle most imperfectly closed. 11º 45' aft 1º 35' had not closed

Touched with Bristle closed at once Put bit of [illeg] in (a)

(Previously tried this with other leaf Blue–headed stick I & it closed suddenly & after [experiment] of only about a minute but most likely almost certainly I touched sensitive Hair.

Sept 17 12º still closed – looks brown externally (B)

as the tortoises which I examined were necessarily from closed leaf – closing does not cause segregation.

The leaf of which half was cut off goes on secreting on opposite side

Sept 5th Hairy long–legs, 22º I noticed black spot on leaf & now 24th dead & never opened. No other leaf except one described has opened after catching a Fly.

After 17 days

[12v]

a) Sept 17 12º still firmly closed, look sick? This wd be curious case of slow poison, but with no loss of sensitiveness.

18th 12º open, but cannot close when touched Glands on inner surface all gone

19 12º has recovered sensitiveness & closed when touched. 21st open again only that glands look pale & shrunk

(B) 18' 12º very slightly open – does not close with touch – 19 does not close with touch but one end of leaf burnt had touched the [illeg] of cyanide

21 12º now closes slightly when touched.