Summary

Discusses the possibility of a land-bridge connecting Biscay with Ireland and the consequent occurrence in southern Ireland of Asturian plants which are absent from England.

Asks if Hooker or anyone has criticised Edward Forbes’ botanical migration of five floras in the British Isles ["On the connexion between the distribution of existing fauna and flora of the British Isles, and the geological changes which have affected their area", Mem. Geol. Surv. G. B. 1 (1846): 336–432].

Summary

Comments on enclosed letters from Asa Gray and Wallace [missing].

Discusses hybrid fertility in rabbits and hares, and pheasants and fowls.

Asks about paper by Hermann Schaaffhausen ["Über Beständigkeit u. Umwandlung der Arten", Verh. Naturhist. Ver. Preuss. Rheinlande 10 (1853): 420–51].

Mentions criticism by Sedgwick and William Clark at Cambridge Philosophical Society.

Notes importance of CL and Hooker in defending Origin.

Comments on papers by D. A. Godron ["Considérations sur les migrations des végétaux", Acad. Stanislas Mem. Soc. Sci. Nancy (1853): 329–67].

Mentions receiving anonymous verses.

A Manchester newspaper lampoon shows CD has proved "might makes right" to be a universal law.

Summary

Describes Sedgwick’s attack on CD’s views [at Cambridge Philosophical Society] and his own defence, though he believes CD has pressed his hypothesis too far.