My dear Mr Darwin

I have to thank you very much for a copy of your work on the movements of plants.² I have as yet only read the introduction & the last chapter.

To offer any praise of the work would be a form of gross impertinence on my part, but I may say that it has been to me a complete revelation— The remarkable nervous system without nerves, for I do not know what else to call it, the existence of wh you have proved, must have a most important bearing on speculations as to the origin of the nervous system in animals—³ One is almost led to wonder why a nervous system has become developed, when it is possible for so perfect a arrangement can exist without any corresponding structural differentiations

Your’s very sincerely | F. M. Balfour