THE EVOLUTION OF PLANTS
- Morgan, T. H. The Physical Basis of Heredity. Philadelphia, 1919.
- Newman, H. H. Evolution, Genetics, and Eugenics. Chicago, 1925.
- Scott, D. H. Studies in Fossil Botany. 2d ed., London, 1909.
- Scott, D. H. The Evolution of Plants. New York and London, 1911.
- Scott, D. H. Extinct Plants and Problems of Evolution. London, 1924.
- Seward, A. C. Links With the Past in the Plant World. Cambridge (Eng.), 1911.
- Vries, Hugo de. The Mutation Theory. Eng. trans, by Farmer and Darbishire. Chicago, 1909.
- Vries, Hugo de. Intracellular Pangenesis. Eng. trans, by C. Stuart Gager, Chicago, 1910.
- White, Orland E. (In Gager’s General Botany. Chapters XL–XLII.) Philadelphia, 1926.
“There is a grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning, endless forms most beautiful and most wonderful have been and are being evolved.”—Darwin.
“Nature! We are surrounded and embraced by her; powerless to separate ourselves from her, and powerless to penetrate beyond her.
"She is ever shaping new forms; what is, has never yet been; what has been, comes not again. Everything is new, and yet naught but the old.”—Goethe.
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