Problems of Relative Growth


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 is still the basis for modern investigations in the field.

Johns Hopkins University Press

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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 is still the basis for modern investigations in the field.

Johns Hopkins University Press

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Editorial Reviews

Reprint of the Dial Press edition of 1932 with a new introduction by Frederick B. Churchill and an essay by Richard E. Strauss--both quite extensive. Annotation c. Book News, Inc., Portland, OR (
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Product Details

  • ISBN-13: 9780801846595
  • Publisher: Johns Hopkins University Press
  • Publication date: 10/19/1993
  • Series: Foundations of Natural History Series
  • Edition description: REPRINT
  • Pages: 360
  • Sales rank: 1,407,593
  • Product dimensions: 5.50 (w) x 8.40 (h) x 1.00 (d)

Table of Contents

List of Illustrations
On the Road to the k Constant: A Historical Introduction
The Study of Allometry since Huxley
Preface to the Original Edition
Ch. 1 Constant Differential Growth-Ratios
1 Introductory 1
2 Constant Differential Growth-Ratios 4
3 Examples of Constant Differential Growth-Ratios 13
4 Inconstancy of Form and Constancy of Form-Change 38
Ch. 2 The Coefficient of Constant Growth-Partition: And Some Special Cases
1 The Heterogony of Deer Antlers 42
2 The Coefficient of Constant Growth-Partition 49
3 Heterogony in Holometabolous Insects 55
4 Heterogony and Polymorphism in Neuter Social Insects 61
5 Heterogony, Moulting, and Dimorphism 68
Ch. 3 Growth-Centres and Growth-Gradients
1 Growth-gradients within Single Organs 79
2 Steepness of Growth-gradient within an Organ and Growth-intensity of the Organ as a Whole 83
3 Reversal of the Sign of the Growth-gradient in Negative Heterogony 87
4 The Form of Growth-gradients 90
5 Growth-gradients in Regions of the Body 92
Problems of Relative Growth
6 Graded Growth-intensity in the Different Planes of Space 95
7 Gradients in Growth-rate of Epidermal Structures 100
Ch. 4 Growth-Gradients and the General Distribution of Growth-Potential in the Animal Body
1 General Growth-gradients: D'Arcy Thompson's Graphic Method 104
2 General Growth-gradients: Quantitative Analysis 110
3 The Two Phases of Growth 118
4 Growth-changes Correlated with High Local Growth-intensity 120
5 Some Cases of Teratological and Abnormal Growth 128
6 The Law of Antero-posterior Development and its Effect upon Growth 132
7 The Mathematical Formulation of Relative Growth in Embryonic Life 139
Ch. 5 Growth-Centres and Growth-Gradients in Accretionary Growth
1 The Accretionary Method of Growth 149
2 Logarithmic Spirals as the Result of Growth-gradients 151
3 Growth-gradients and the Shells of Molluscs 154
Ch. 6 Heterogony, Growth-Gradients and Physiology
1 Normal Proportions as Results of a Partition-equilibrium 165
2 The Initial Determination and Physiological Basis of Growth-gradients 167
3 Other Gradient Theories 170
4 Heterogony and Hormones 176
5 Heterochely and Relative Growth-rates 189
6 Specific Growth-intensities and their Interaction 191
7 The Influence of External Conditions 197
8 Rhythmical Irregularities of Growth-ratio 203
Ch. 7 Bearing of the Study of Relative Growth on other Branches of Biology
1 Heterogony and Taxonomy: Sub-species and Taxonomic Forms 204
2 Heterogony in Groups Higher than the Species 212
3 Heterogony and Evolution 216
4 Heterogony and Comparative Physiology 224
5 Relative Growth and Genetics 229
6 Relative Growth, Embryology, and Recapitulation 234
7 General Approach to the Problem of Qualitative Form-change 240
Bibliography 245
Addenda 257
Index of Authors 267
Subject Index 270
Index of Organisms 274
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