Summary

Thinks it would be a good idea to give the typing machine to Karl Semper.

Summary

Reports observations on day and night movement in Porlieria.

Summary

Othniel Marsh of Yale would like to visit CD.

Summary

JDH details the subscription fund’s finances.

Has finished lecture for Royal Society on N. American plant distribution.

Summary

Reports results of crosses between the two forms of Viola tricolor: 1. Female small flower crossed with male large flower yields all small flowers (cleistogamous self-fertilisation suspected); 2. Male small flower crossed with female large yields intermediate flowers; 3. Large flower crossed with large flower yields self-sterility symptoms.

Summary

He has been talking to Julius von Sachs about sleeping plants that move with and without growth.

Summary

Sleep in Porlieria studied.

Oats begin germinating.

Summary

Has taken OCM to the photographer’s, and is sending photographs to be signed.

Summary

Writes about [H. R. Hope-]Pinker, who tried to approach CD via the Royal Institution in order to sculpt a bust of him. WS advises against agreeing to sit for him.

Summary

Refers to Charles Lagrange, who is working on the same subject as GHD, but in a fundamentally different way.

Summary

Sends drawings of specimens [of Thalia] CD requested.

Summary

Chlorophyll development in oat seedling.

Lists the sleeping plants he has seen.

Julius Sachs thinks Hugo de Vries has not cleared up everything [about climbing plants]. But Sachs has not worked on the mechanical problem.

Summary

Has found examples of small female flowers in Stachys germanica and Ranunculus bulbosus.

Summary

Sends specimens.

Sensitive plants.

Summary

More sleepers from green-house.

Julius Sachs’s view of climbing plants: he distinguishes between nutation to find a support and growth after support is found.

Summary

Explains difficulties in supplying wings of geese. Describes injury of old gander that sired the abnormal geese.

Summary

Informs CD that certain cash from U. S. investments does not have income tax deducted.

Summary

Has been investigating nutational movements of climbing plants; comments on the opinions of Julius von Wiesner and Julius Sachs. Remarks on the sleep movements of certain plants and the mechanism of tendril curvature. Is experimenting with Porlieria.

Has visited K. G. Semper’s laboratory.

Summary

Is sending CD the seeds of a beautiful Cassia given to him by a friend. He sketched the unripe fruit a few months ago. This plant is rare in the area around Sta Catharina. He has found their largest and most beautiful butterfly Callidryas manippe near this tree and its caterpillars living on its leaves. Comments on how remarkable it is to find a species limited to living on a single tree in so large an area.

Summary

Thanks CD for his kind letter and accepts his offer of a writing machine.