. Wanderings in the great forests of Borneo; travels and researches of a naturalist in Sarawak. Botany; Zoology; Artocarpus; Bananas. IN BORNEAN FORESTS [chap. arisen on all sides as to the theory that natural selection is tlie sole means capable of explaining the raison d'etre of the specific characters of living organisms. According to the theory of the plasmation of living beings through the action exerted on them by the environment, every species would be the product of the physical forces and stimuli to which its remote ancestors had been subjected. For this reason every animal and every
. Wanderings in the great forests of Borneo; travels and researches of a naturalist in Sarawak. Botany; Zoology; Artocarpus; Bananas. IN BORNEAN FORESTS [chap. arisen on all sides as to the theory that natural selection is tlie sole means capable of explaining the raison d'etre of the specific characters of living organisms. According to the theory of the plasmation of living beings through the action exerted on them by the environment, every species would be the product of the physical forces and stimuli to which its remote ancestors had been subjected. For this reason every animal and every plant ought to bear in its own structure the traces of its first origin. Even in famiHar talk it is generally. Fig. 41. FCETUS OF ORANG, SIDE VIEW. admitted that each climate has left its mark on the organisms living within its influence. The varied forms assumed by those groups of individuals called by naturalists species, would be merely the result of a plasmative force exerted by surrounding conditions on primitive beings ; and from a certain point of view it might be said that species represent the impression of which the stimuli, in general, have been the stamp or matrix. Thus a careful and minute investigation of the structure of any given species ought to lead to the knowledge of the circumstances 208. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Beccari, Odoardo, 1843-1920; Giglioli, Enrico Hillyer, 1845-1909. tr; Guillemard, Francis Henry Hill, 1852-1933. ed. London, A. Constable & co. , ltd
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