Wrote a "frightful screed" about aristocracy’s being a necessary consequence of natural selection, and then burnt it.

H. W. Bates is the only man "thinking out" natural selection to any purpose. "I think I have driven Bates back to Nat. Sel. as the only way of solving his difficulties."

HWB’s mimetic butterflies.

JDH wishes he had time to do the same thing with plants.

Owen and Huxley involved in a "contemptible" squabble in the Edinburgh newspapers.

Maximovitch reports Stellaria bulbifera is a Siberian form which never ripens its seeds.