Principles of breeding : a treatise on thremmatology or the principles and practices involved in the economic improvement of domesticated animals and plants / by E. Davenport.

  • Davenport, E. (Eugene), 1856-1941.
Date:
[1907], ©1907
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Principles of breeding : a treatise on thremmatology or the principles and practices involved in the economic improvement of domesticated animals and plants / by E. Davenport. Source: Wellcome Collection.

    12/750 (page X)
    Chapter III. Experiments of De Vries ........ IV. American Experiences ........ V. Economic Significance of Mutations ..... VI. Biological Significance of Mutations ..... References .......... PART II —CAUSES OF VARIATION Introduction VII. The Mechanism of Development and Differentiation I. Protoplasm the Physical Basis of Life ..... II. The Cell the Unit of Structure ...... III. Mechanism of Cell Division (Mitosis) ..... IV. Cell Division with and without Differentiation V. Physiological Units ........ References .......... VIII. Internal Causes of Variation I. INTERNAL INFLUENCES AFFECTING PRIMARILY THE IN DIVIDUAL I. Cell Division .......... II. Bisexual Reproduction a Fundamental Cause of Variation III. Maturation and the Reduction of the Chromosomes a Cause of Variation ......... IV. Bud Variation .......... V. Influence of the Condition of the Germ upon Development VI. Xenia, or Fertilization of the Endosperm . . . . VII. Telegony ........... VIII. Intra-Uterine Influences ........ IX. Reversion and Atavism ........ X. Individual Characters dependent upon Sex . . . . II. INTERNAL INFLUENCES AFFECTING THE RACE AS A WHOLE XI. Relative Fertility, or Genetic Selection . ... . XII. Physiological Selection ........ XIII. Selective Death Rate ; Longevity ...... XIV. Bathmic Influences ......... XV. Physiological Units ......... XVI. Germinal Selection ......... References .......... IX. External Influences as Causes of Variation I. General Effect of Locality upon Plant and Animal Develop ment ........... II. Influence of Food upon Variability . III. Effect of Moisture upon Development . . . . . IV. Effect of Contact upon Protoplasmic Activity . . . . V. Effect of Gravity upon Living Matter ; Geotropism VI. Effect of Light upon Living Matter . Page I 14 129 135 136 1 39 141 142 142 M3 M 5 149 r 5 2 J 54 i 55 1 55 155 160 163 181 182 183 185 189 192 194 196 196 201 201 202 208 2I 3 217 220 225 2 3° 2 33 2 3<5 2 39