[2]

p. 35. There is no contractile tissue in the inferior swelling— the latter [illeg] lose by excitement (both direct & transmitted) in some unknown unknown way its energy, or that pressure which it always at other times exerts against the central woody axis. — The upper swelling when excited certainly does not increase in power.

p. 37 The noctural movements are altogether of a very different nature & differently effected.

p 38 The movements of sleep not affected by ethers, whilst this does af prevent movements from excitement.

p. 39 & 42. Believes sleeping movements due to endosmose & exosmose, but does not believe that the excited movements can thus be caused:— cannot explain them.—

p. 43 says it is an error when any any of the movements of the Sensitive Plant are called "reflex"; for then movements depend on the strength of the excitement, & the

(3

distance to which excitement is transmitted.

(a) There is no central organ to be excited, & to reflect the excitement. (But if I am right about glands of Drosera there really as ganglia to & reflect excitement from those of central disc.

p. 44 says that the "impassionabilite & la transmissibilitè" impassionability & transmittance of impressions does agree agree would remarkably with animals — If a an animals were like Sensitive, the nerves wd convey impassions without any nervous centre, & one nerve by mere approximation wd affect another nerve & this is not case with animals.—

[in margin:] Bears on marginal [illeg]

Action of Anæsthetic does not prove similarity, for with animals, the muscular contractibility & the power of transmission in the nerves are less perfect, only the nervous centre & by actual contact the same muscular sensory nerves are affected; whilst with the sensitive Plant

[3v]

(a) Say as M. Bert has shown there are no true reflex actions with the Sensitive, as there is no central organ or organs.

I do not see how we can tell with Drosera whether it is the excitability of the glands or power of transmission which is affected by Anæsthetics.

(4

it stops the anæsthetics strike with immobility the plant in whatever position it may happen to be — it destroys the excitability & the power of movement of in the swellings at base of leaves & petioles — it stops the power of transmission of the fibro-vascular bundles — The vibratile ciliæ of animals are affected by anæsthetics like the Sensitive.

If the glands of Drosera are ganglia— they are effected.

He admits that ether acts locally on sensory nerves of animals—

How can he tell that Ether when inhaled [illeg] if does not act on them all over body?

It may be with Drosera, that ether only stops power of transfers from glands to bending points—

[4v]

It is remarkable that the m. I shd be sent through cellular tissue by fibre in Mimosa