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Books > Science & Mathematics > Biology, life sciences > Developmental biology
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Problems of Relative Growth (Paperback, New Ed)
Loot Price: R823
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Problems of Relative Growth (Paperback, New Ed)
Series: Foundations of Natural History
Expected to ship within 12 - 17 working days
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This detailed study of the different rates of growth of parts of
the body relative to the body as a whole represents Sir Julian
Huxley's great contribution to analytical morphology, and it is
still a basis for modern investigations in morphometrics and
evolutionary biology. Huxley was the first to put the concept of
relative growth - or allometry - upon a firm mathematical
foundation, and since publication of this book in 1932, his work
has been found to have greater implications than even he imagined.
Problems of Relative Growth is at once a formulation of the basic
principles of allometry and a survey of its many and various
occurrences and applications. Examples are taken from such widely
divergent areas as the development of the large claw in male
fiddler-crabs, the size and number of points of deer antlers,
heterogony in neuter social insects, the disproportionate growth of
the human head from infancy to adulthood, and the formation of
spiral shapes in certain mollusk shells and of the curved shape of
the rhinoceros' horn. Starting from the fact of obvious disharmonic
growth, Huxley formulates his first and fundamental law - that of
the Constant Differential Growth Ratio. He then demonstrates that
the distribution of growth potential occurs in an orderly and
systematic way - that there are growth-gradients culminating in
growth-centers. Other topics treated include multiplicative and
accretionary kinds of growth, the role of hormones and mutations,
and the relevance of the entire investigation to the problems of
orthogenesis, recapitulation, vestigial organs, the existence of
nonadaptive characters, physiological genetics, comparative
physiology, and systematics. In theirintroduction to this
unabridged facsimile republication of the original 1932 edition,
Frederick B. Churchill and Richard E. Strauss place Huxley's work
in the context of modern research in history and biology.
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