Nomenclature for kinds of heliotropism.
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Nomenclature for kinds of heliotropism.
SB’s book [Life and habit (1878)] will be bound shortly. He will send two copies, one of which can be given to CD. To SB’s surprise it has turned out to be an attack on CD’s views and a defence of Lamarck; describes how he was brought to the opinions expressed in it.
Forwards an unspecified work for FD to read.
FD has sent proofs; nutating of Ricinus; Horace Darwin and the wormograph.
Sends letter and seeds from [F. J. Cohn].
Is working too hard.
Thanks ASW for Aegilops seed.
Will publish Origin first
and then Descent.
AS is looking for a job in a zoological museum or accompanying an expedition.
Suggests movements of sensitive plants may protect against insects.
JIR’s "theory" of sensitive plants published in an anonymous letter he sent to the Field 2½ years ago. Mechanisms for protection against insects in sensitive plants.
Julius von Sachs will "swear & curse" when he finds out he has missed sensitiveness of root apex. Has been putting his notes together and the case is conclusive. [Dated "Saturday 10th" by CD.]
Thanks for sending Nature; plans to leave on 22 May; anecdote about Bernard.
A report has arrived for FD which CD will forward.
Has had conflicting information on the movement of radicles; wants FD to experiment with them.
Asks whether canary grass and oats have chlorophyll in their cotyledons.
Has been working hard at circumnutation of leaves to see whether sleep movements are exaggerated circumnutation.
Suggests sensitive plants that close at night would be protected from nocturnal-feeding snails. JIR’s brother in India says snails occur there in abundance.
Thinks it would be a good idea to give the typing machine to Karl Semper.
Has been observing the movements of leaves and cotyledons; sleep movements are exaggerated circumnutation. Reports some odd observations on movement in Oxalis species.
Can send FD twisted branches of some climbing plants if he wishes.
Asks questions related to movement in plants. The cotyledons of Oxalis offer a promising field for study.
Wonders why Julius von Sachs thinks bloom is a protection against insects.
Encloses notes on the cotyledons of Oxalis species.
Sleep of Porlieria hygrometrica seems independent of light.
Will have lots of time for oats. W. F. P. Pfeffer’s point is that there is no growth in sleepers with joints. A. F. Batalin says there is a slight growth.
[Dated Saturday 28th by FD.]