171

In p. 4 (see cross) I wd repeat the words "rapidly propagated" or "instantaneous – by transmitted'

Further down I think it wd be clearer if instead of "between muscular action & the movement of the leaf"

It were to read

"between the mechanism by which a muscle contracts & that whereby the leaf moves executes its movement

N.B. From experiments made during the last two years wh. will soon be published, I have been led to conclude that the so called "leaf current" i.e. the electrical difference between the upper & under surface is much low intimately connected with the physiological condition that part of the upper surface from which this excela sensitive filaments spring so too the "leaf caneal" and the "excitatory disturbance" on different manifestations of the same property.

171v

p. 2 (see cross in pencil in margin)

But also because the facts of the case are not in accordance with Prof illeg theoretical deductions. He inclines to admit that the electrical differences observed between different parts of the unexcited leaf may be partly explained

p. 3 (see cross in margin) For "gradual changes of potential" I wd. Say "gradual electrical change"—

Instead of "certain facts connected with "after effect"- I wd say "the after effect of a single excitation

Instead of "preliminary &c" I wd say

"primary and rapidly propagated electrical disturbance which is the immediate effec of excitation"

over