80

Bournemouth Drosera Sept 21. 62

I see bending of tentacle is confined to little above base: now when meat put on this basal part almost always begins to bend in under 1', I have seen it in 50". Now from what I remember, when watching absorption of C. of Ammonia, the action by no means travel at this rate to the base; which helps to prove that excitement travel not by absorption, but by nervous matter; as almost must be case with Dionæa.—

If cells contract, fluid must be expelled; hence exosmose might cause involuntary contraction, & forcible endosmose cause the reexpansion of tentacles, without fluid being real cause.

Puncture cells & see if contraction — Measure cells & put on meat & measure cells - compare minute structure of slice of cell under 1/8 power.

[80v]

Only chance of making out movement, wd be to take fine red hair & prick back or under surface & put in weak C. or N of Ammonia & see if bends – Look at transparent tentacle after C. of ammonia & see or measure difference in cells—