Weismann's "Studies in the Theory of Descent" and subsequent papers.
Romanes's "Scientific Evidences of Organic Evolution."
Lankester's "Degeneration."
Fiske's "Darwinism and Other Essays."
For adverse criticism of Darwin, read Mivart's "Genesis of Species," and the Duke of Argyll's "Unity of Nature."
JOHN ERICSSON.
1803-1889.
NAVIES OF WAR AND COMMERCE.