[23] ‘Transact. Linn. Soc.,’ vol. xxiii. 1861, p. 360.
[24] ‘Die Getreidearten,’ 1845, s. 208, 209.
[25] ‘Gardener’s Chronicle,’ 1850, p. 198.
[26] Quoted in ‘Gardener’s Chronicle,’ 1866, p. 74.
[27] ‘Ueber den Begriff der Pflanzenart,’ 1834, s. 14.
[28] ‘Domesticated Animals,’ 1845, p. 351.
[29] Bechstein, ‘Naturgeschichte Deutschlands,’ B. iv. 1795, s. 31.
[30] ‘Proc. Entomolog. Soc. of Philadelphia,’ Oct. 1863, p. 213.
CHAPTER XXVII.
PROVISIONAL HYPOTHESIS OF PANGENESIS.
PRELIMINARY REMARKS—FIRST PART: THE FACTS TO BE CONNECTED UNDER A SINGLE POINT OF VIEW, NAMELY, THE VARIOUS KINDS OF REPRODUCTION—RE-GROWTH OF AMPUTATED PARTS—GRAFT-HYBRIDS—THE DIRECT ACTION OF THE MALE ELEMENT ON THE FEMALE—DEVELOPMENT—THE FUNCTIONAL INDEPENDENCE OF THE UNITS OF THE BODY—VARIABILITY—INHERITANCE—REVERSION—SECOND PART: STATEMENT OF THE HYPOTHESIS—HOW FAR THE NECESSARY ASSUMPTIONS ARE IMPROBABLE—EXPLANATION BY AID OF THE HYPOTHESIS OF THE SEVERAL CLASSES OF FACTS SPECIFIED IN THE FIRST PART—CONCLUSION.