The Naples Zoological Station and its library are growing fast. His life is a constant battle with the municipality, but has managed to make a little progress on vertebrate ancestry and morphology. His views get further away from what is generally accepted.

News of Naples Zoological Station developments.

His remarks on physiology in the Academy were aimed at Prof. Ludwig and his school.

The usual "exact" methods in experimental physiology want only a little pushing to put an end to superstition.

Recounts how he had worked out the explanation of Rhizocephala morphology via the Anelasma – an example of both the power of inheritance and the power of genealogical investigation. R. Kossman’s work has now confirmed AD’s explanation.

Birthday greetings.

His gratitude for CD’s gift. An account of his difficulties with the Zoological Station and his health.

F. M. Balfour has told him that CD would like to see the question of complemental males in cirripedes studied again. AD would like to enter the field and to study the whole morphological development of cirripedes.

Describes the interest in embryological work in Russia and Germany.

Thanks to CD’s help Zoological Station has passed a crisis and is now flourishing.

Is writing pamphlet on "the origin of vertebrates and the principle of succession of functions" [see 9991 and 10003]. It is likely CD will not be pleased with it, but he thinks he must now, after seven years, bring it out. Seeks to open the way for a new series of theoretical questions.