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Footnotes to evolution : a series of popular addresses on the evolution of life
Journal of researches into the natural history and geology of the countries visited during the voyage of H. M. S. Beagle round the world, under the c…
Thomas Henry Huxley
The Pennsylvania forest problem
Hardy field grown plants : fall 1943
Evolution made plain
Journal of researches into the natural history and geology of the countries visited during the voyage of H.M.S. Beagle round the world, under the com…
Journal of researches into the natural history and geology of the countries visited during the voyage round the world of H.M.S. 'Beagle' under the co…
Travels in various countries of Europe, Asia and Africa
Scientific lectures