Inquiries on effect of dry heat on temperate plants for glacial chapter.
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Inquiries on effect of dry heat on temperate plants for glacial chapter.
Survey of species with well-marked varieties: JDH’s Labiatae case a "great blow", but result is very generally consistent.
Species with marked varieties.
Dana’s pamphlet also too metaphysical for CD.
Natural selection chapter on hybridism completed.
Doubts JDH will resist theory in his introduction to Flora Tasmaniae.
Asks whether British or north European perennial plants can, under cultivation, withstand the climate of S. Australia.
No summary available.
THH’s catalogue [THH and R. Etheridge, A catalogue of the collection of fossils in the Museum of Practical Geology (1865), part published in 1857] best résumé he has seen of science of natural history. On classification he is not quite sure that he wholly goes along with THH. Encloses a few criticisms of THH’s preface.[enclosure survives as copy only].