My dear Hooker

I shall be very glad to take a part in any scheme which you wish for.—¹ Will you therefore put my name down for £200. But I think rather strongly that it would be only fair to the subscribers to state that the subscriptions would not be called for, unless £10,000 is promised, so that the Soc^y. may be enabled to reduce by a sensible amount the cost of being elected a member.²

Your life must now be one of great fatigue,

Ever yours very sincerely | Ch. Darwin

P.S. | Do you possess Porliera hygrometrica & if so could you lend me the plant? Frank sends me a wonderful account of its being almost always asleep, night & day, & I sh^d. much like to observe it.³