(B1

Drosera rotundifolia — Bournemouth (1862)

Sept 14th 9º 40' put small bundle of my Hair size of Fly on a leaf to test whether knows is animal matter. (Atoms of thread & cork did not act)

Sept 15 a good many "Hairs" had closed over the bundle of human Hair

Tuesday Sept. 16. 9º 40' The twisted Hair had become straight ie uncurled; this certainly would not have occurred in 48º with fly or meat.

I have just proved that Hair with cooked meat & they instantly began to move

Tuesday 16th 10º put a bit of the nail of my toe on another leaf of same plant:

Wed. 17th 9º Hairs well closed over.

Thursday 18th well closed.

19th 8º 30' beginning to reopen.

20th 9º A.m quite reopened

Tuesday 16 10º 20' put bundle of Human Hairs on another leaf, which did not act. (do on another leaf

Friday 19th 6º P.m put the bundle on another leaf

20. 9º 30' A.m partially clasped

22d. still partially clasped.

23d. 8 A M quite open

16th Sulph. of Zinc dry crystals placed on 2 Hairs for 10' caused no movement but rather blackened the head; I suspect caused excretion. I then put on meat, but caused no movement; whereas on a Hair close by a bit of meat put on subsequently caused movement; for many hours no movement whilst all other Hairs were acting; but after 23º I suspect moved a little.

[B1v]

In the longer, not longest hairs, I clearly see that the bending is near base of Hair an atom of meat caused plain movement (at base of Hair in 56".—

(B2

Sept 16. Cyanide of Potassium, (dry) caused very rapid movement, more I think than any other substance blackened head quickly & evidently on killed Hairs

I am now sure that Sulp. of Zinc causes larger secretion of fluid & no movement ∴ my old notion is rubbish — (? more. effect of exosmose: very complex case)

Sept 16 Opium (dry) caused no movement in 10' & I think afterwards meat caused either no movement, or a very slow subsequent movement

Wednesday Sept 17. Strychnine (dry) caused no movement nor excretion of fluid: atom of meat, with strychnine still on caused regular & rapid movement. Evidently as innocuous as sugar; but it is very slightly soluble.

Wednesday Sept 17. Put opium (dry) on 2 Heads for 5' & then partly removed opium & put on atoms of meat at 10º 5' in 15' no movement. — 10º 50' Hairs close by not affected, but no change in Hairs stomata.: 1º 15' one hair has moved a good deal. 2º 30' both moved, but only doubt is that whole leaf has curled in.

[in margin:] Marked yellow petal

(B. 3

Bournemouth 1862 10º 30'

Wednesday Sept. 17 — a plant in large tumbler first exposed to 1 dropped drop of chloroform for 45" & then atoms of meat put on hairs moved — Immediately exposed for 1' 30" to 2 drops of chloroform, all hairs commenced rapidly curling inwards.

Sept 17. Phosphate of ammonia (dry) caused large secretion & very slight movement; blackened Head — apparently too strong. Yes for it killed the heads & they shrivelled up.—

Thursday 18 by putting infinitely minute atoms I caused peculiar movement, but even this injured the Heads.

Sept 17 Extract of Belladonna dry caused rapid movement

― Extract of Henbane caused no movement; left on 8'; & then one head partly cleaned & other left with large bit of the Henbane, with atoms of meat put on, both moved strongly

Sept 17. Veratria caused rapid movement (I believe extract of Hellebore.

Wednesday 17th 2º 30' put the bundle of Hair on new leaf marked by yellow petal.

18th 9º no action.

[B3v]

No dry particle can be trusted. Chalk dry causes rapid movement.

(Acetate of Morphia wd be best to try )

So that we see after Chloroform, after hairs had got it nearly straight & meat [put] on, they moved in about 4 hours Effect like Opium, only that opium does not at first cause movement.

(B. 4

Bournemouth

Wednesday 17th 2º 30' common with ink & Green Cotton on new plate

Thursday 18th 9º no action.

Thursday 18 9º 5' put on atom of opium (dry) on fresh leaf (Green stick) & left for 3' & then put on meat 11º 20' no movement. 12º 15' do — 1º 15' one had moved a little 2. 15 both moved a little, but heads dry.

Thursday 18th 9º 15' exposed plant to one small drop of Chloroform for 1' under large tumbler, holding 2º 53' no action

oz. 11º 20' no action// no action 2º 53' gave same plant 2 drops in do tumbler for 1'. 3º 15' one leaf had several hairs inflected on lower side, marked

Friday 19th 9º most of these hairs nearly straight at 11º put on bit of meat on Hairs with plenty of secretion no action: 1º no action./ other hairs acted with meat But at 3º 30' these hair had not moved

Thursday 18th Arsenious Acid [insertion:] dry left on for 10' caused no movement, but afterwards meat acted well probably not dissolved.

(B 5

Bournemouth

Thursday 18' Phosphate of Soda. (dry) plainly caused slight movement over a space; & then stopped & then meat put on did not cause any movement; whereas an adjoining hair moved rapidly: both a minute atom & a large dose were tried.

Perhaps like Phosphate of ammonia, which caused only slight movement. After about 10' the meat acted on 3 more Hairs then salt produced no movement ; meat put in caused no movement in 10'; but after 15' additional minute head moved considerably — Hence clearly retards action of meat.

[in margin:] Blue Stick

Thursday 18th Bichloride of mercury (dry) after 10' tried on 5 hairs acted on one (perhaps some accident) but caused no movement in 4. Meat put on produced no movement — Glands became black & shrivelled; but almost entirely after a bit of meat has been added; perhaps the meat causes absorption & then poisoned

[B5v]

Friday 19' put carb. of lime (dry) on 4 hairs, two moved spontaneously & as quickly as with meat & two after being routed.

I routed4 or 5 time 3 Hairs & both moved as quickly as if meat put on!!!!

I touched once hard with needle 3 hairs no action when routed1 acted – I touched once a lot of hairs on fine leaf none moved, when routed one or two moved — Tried again one touch no action, routed some moved & some did not. It is always doubtful whether half-a dozen rough touches act.

(Used)

(B.6

Bournemouth Thursday 18

I noticed that on putting strychnine (dry) on 5 heads & leaving them 5' some moved & some did not but on touching the 3 which did not move with needle in about 1' they curled in — I touched other heads without anything & they did not move in same time: I suspect that the two, which moved spontaneously with strychnine had been touched in putting on the strychnine—

Friday 19 put strychnine (dry) on 2 Hairs; one moved spontaneously & one after being routed. It is clear from chalk experiments & effects of touching alone, cannot be trusted.

Friday 19 White sugar (dry) caused greater secretion, (probably exosmose in all cases), but no movement nor when subsequently routed — (nor did cinnamon drop ie sugar with oil of cinnamon on 2 hair) But meat acted on these 4 all!! This would indicate that great excretion stops sensibility to touch, but not to absorption of meat. But bits of wood ought to be tried.

(B7

Bournemouth. Friday 19th 11º A.m.

Exposed plants to 2 drops = about minim of Chloroform, holding 12 oz for 1' 30" & immediately all hairs when tumbler removed came perpendicular some moved with start; I never saw such rapid movement; — but did not close in more than perpendicularly.

Sat 20 9º A.m, all hairs now fully exposed; meat acts energetically & mere touch in fully half the hairs tried. So Chloroform has not in the least hurt the plant & quite restored in 22º.

Poisons (Back Keep)

[in margin:] Was there much secretion

Sat 20 9º 30' Prussic A. fluid of Pharcopæa certainly causes movement but not so energetically as cyanide of Potassium — 3 or 4 hairs inflected to see if they recover: I think they quite recovered; 22º only one dead.

Sat 20 10º Extract of Belladonna with water, so as to be liquid, tried on 5 Hairs, certainly causes movement: I think quite recovered. 22º all hairs perfectly recovered

do: liquid extract of Henbane produced no effect on several Hairs (when not touched ) & then Hairs moved when a few minutes subsequently they were rubbed & when meat was put on

[B7v]

20 I find touching roughly hairs, which certainly often acts is very capricious; not so meat—I cannot observe that one part of head more sensitive than other: in one case end of pedicel, where united to gland was sensitive; I did not find by single trial that cutting off gland or crushing it caused movement. I did not find that rubbing pedicel in lower part caused movement — In several trials a single touch of gland did not cause movement.

I put drop of water of on heads for 6' & then put on atoms of meat, but of course no stop to movement. This was check to all experiments with poison.

After an atom of meat put & movement has commenced, the head & top of pedicel may be cut off & no cessation of movement so that Strychnine does more than cutting off head.

(B8

Bournemouth. Sat 20 Poison

Put drop of rather diluted Acetate of Strychnine on many hairs, no apparent effect, no movement, no change of colour, but ultimately head blackens; in about 4' I tried rubbing & meat produced no sort of action, whereas adjoining hairs moved well — What is more interesting, I started hairs with meat & then put on the strychnine, it promptly, but not instantly arrested them, so that hairs on each side with meat passed them & travelled further.

Sunday 21 tried same experiment again, hardly succeeded once, for the tentacle had moved some way; but a second time putting on the A. of strychnine, the motion was clearly arrested shortly after it, it had certainly commenced

(B.9

Bournemouth

Saturday 20th Chloroform as before on another part for 2' only very slight effect on Hairs. — Another plant for 4' no effect!!! The hairs on the first of these two plant moved with meat & so were not rendered insensible. (Anæsth)

Sunday 21. 3º 5' P.m. 4 drops for 2' 25" caused movement to begin plainly (not all evaporated) & tentacles stood perpendicularly & some curled inwards — rapid movement. — 3º 45' 2 of the leaves well closed in. — 4º 45' look deadish.

22d. 11º not dead, beginning to open very slowly

Sunday 21 strong Tobacco water (Poison) left on for 6' caused no movement & did not interfere with action of meat or touching

21st. (Stick & Black lines.)

10º 30'. Acetate of Morphia dissolved about 8' 2 heads, & then put on meat; but this was young & torpid leaf, which did not move for 2' or 3' with meat on common hairs; but then moved well

The morphia produced no effect 11º 15' / 11º 45' one had moved a little. 12º movement excessively slow — 1º a little more inwards. 2º 30'{both well towards centre 4º 45' both at centre

10º 45' two more glands on good leaf in which tentacles moved in little under 1' treated for 5' with the morphia & then with meat

(Green Stick.) 11º 15' no action. 11º 45' one had moved a little / 1º both now moved — 2º 30' both well towards centre 4. 45 one at centre

(B.10

Bournemouth — Sept 21. (Black Stick.) Poison

Acetate of Veratria fluid (all acetic A. first evaporated as was in A. of Strychnine.) put on for 5' on 3 good glands (an intermediate one undoctored moved in 50") at 11º, did not act in 11º 15' / 11º 45' one moved in centre / 2º 30' no change — The 2 which did not move seem dead

Monday 22d 8º 30', one of the two tentacles has now bent to centre.

Monday 22d Cutting off the heads with sharp scissors close under caused vast number of tentacles to curl inwards.

(Used)

Monday 22d 9º 20' 4wet inside of do tumbler with about dozen drops of spirits of wine & exposed plant for 5'; no change perceptible; but many hairs with meat did not move by 9º 30' / 9º 45' in 25' some had begun to act; action variable: 10º in 40' most have turned in somewhat: 10º 30' 1º 10' nearly all have moved considerably — a few have not turned

[few words illeg]

ditto (alcohol) 9º 35' for 5': 9º 45' one set have begun to act: action variable 10º 30' nearly all in 10' have moved considerably a few have not. — less torpid than from acetate of morphia (1)