Summary

To cast doubt on CD’s view that volcanic action is associated with elevation of land, CL suggests that local oscillations in strata underlying volcanoes could also explain how active volcanoes have uplifted fossil deposits of marine shells. Overall he is more inclined to believe that recent volcanoes belong to areas of subsidence rather than of elevation.

Summary

Hybrids of Phasianus versicolor breed freely between themselves as well as with common pheasants. Has been assured that hybrids between mallards and pintails are sometimes fertile inter se.

Summary

[T. Bell Salter’s?] "hybrid" Epilobium a false claim.

Admires Huxley’s response to Falconer [see 1904].

Tristan da Cunha plant list, requested by CD, supports JDH’s position [on continental extension?].

Chilean plants not exceptional.

JDH considers parallels between Australian Alps and European plants strong evidence for multiple creations.

Summary

Has reduced 20 Cyrena species to geographical varieties of one species, Cyrena fluminalis. Hooker is reducing Indian flora at the rate of 19 to 1.

Recommends W. H. Harvey’s Seaside book [1849] and Charles Pickering’s Races of man [1850].

Summary

Lists Lusitanian shells with wide ranges beyond that geographical province.

Antiquity and elevation of land mass is more important than latitude for the distribution of shells.

Summary

Responds to CD’s questions about the geographical distribution of freshwater fishes.