Thanks for AdeC’s Phytographie [1880]. CD finds in it a number of "philosophical" remarks new to him. The work would have been invaluable to him in dealing with puzzles when writing his cirripede monographs.

Describes his system of keeping notes on separate pieces of paper filed in several scores of large portfolios.

Has just sent MS of Movement in plants to the printer. Thinks he has suceeded in showing "that all the more important great classes of movements are due to the modification of a kind of movement common to all plants from their earliest youth".