Has “several times noticed eight permanent incisors instead of six in the jaw [of the horse]”.
Has “several times noticed eight permanent incisors instead of six in the jaw [of the horse]”.
Crying and the action of the orbicularis.
Thanks CD for his photograph.
Intends to start experimenting with mosses to determine which differences in structure are effected by altered conditions of life.
Notes on sexual differences within certain species of birds.
Development of complex language does not require an early civilisation. [See Descent 1: 56ff.]
Printed prospectus for volume of poems on Natural History and Physical Science.
No summary available.
Comments on the bad habits creeping into the language of the German Academies. Sends list of papers and also a transcript of GE's paper for the Astronomische Nachrichten.
No summary available.
HCW’s criticisms of CD’s theory.
Reports making graft-hybrid potatoes.
Has found direct action of pollen in Mays [Zea] crosses and apple-trees.
F. Delpino has asked for CD’s address.
CD seeks information on the variation of ocelli within species of butterflies.
Expresses his gratification on reading of Leonard Darwin’s high placing on the Sandhurst list.
No summary available.
CD has been elected a Corresponding Member of the Biology Section of the Académie Impériale des Sciences, St Petersburg.
Discusses mule canaries which show a tendency to revert to wild plumage colours.
Makes no claim to originality for his experiments; thinks highly of Dr. W. C. Wells but would like to know whether [Pierre] Prévost's theory is tenable.
Sends portion of his book, Grundlegung von Aesthetik [1869]. Argues that CD’s theory can be reconciled with religion.
Congratulates FH on graft-hybrid of potato. Importance of FH’s discovery to be discussed in Variation [2d ed., 1: 420].
Discusses Balanophora with conspicuous male flowers and absent female perianth.