Galen: On the Natural Faculties by Galen

Chapter III

The morphological factors suggested by Erasistratus are quite inadequate to explain biological happenings. Erasistratus inconsistent with his own statements. The immanence of the _physis_ or nature; her shaping is not merely external like that of a statuary, but involves the entire substance. In genesis (embryogeny) the semen is the active, and the menstrual blood the passive, principle. Attractive, alterative, and formative faculties of the semen. Embryogeny is naturally followed by growth; these two functions distinguished.

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Chapter 1 Ch.1
INTRODUCTION ix Ch.2
BOOK III 221 Ch.3
INTRODUCTION Ch.4
Chapter I Ch.5
Chapter II Ch.6
Chapter III Ch.7
Chapter IV Ch.8
Chapter V Ch.9
Chapter VI Ch.10
Chapter VII Ch.11
Chapter VIII Ch.12
Chapter IX Ch.13
Chapter X Ch.14
Chapter XI Ch.15
Chapter XII Ch.16
Chapter XIII Ch.17
Chapter XIV Ch.18
Chapter XV Ch.19
Chapter XVI Ch.20
Chapter XVII Ch.21
Chapter I Ch.22
Chapter II Ch.23
Chapter III Ch.24
Chapter IV Ch.25
Chapter V Ch.26
Chapter VI Ch.27
Chapter VII Ch.28
Chapter VIII Ch.29
Chapter IX Ch.30
Chapter I Ch.31
Chapter II Ch.32
Chapter III Ch.33
Chapter IV Ch.34
Chapter V Ch.35
Chapter VI Ch.36
Chapter VII Ch.37
Chapter VIII Ch.38
Chapter IX Ch.39
Chapter X Ch.40
Chapter XI Ch.41
Chapter XII Ch.42
Chapter XIII Ch.43
Chapter XIV Ch.44
Chapter XV Ch.45
BOOK I Ch.46
introduction had been given to the practical parts of our teaching. Ch.47
Introduction, p. xxvii. Ch.48
Introduction, p. xxix. Ch.49
BOOK II Ch.50
BOOK II Ch.51
Introduction, p. xxxiv. Ch.52
Introduction, pp. xii. and xxxi. Ch.53
BOOK III Ch.54
BOOK III Ch.55
Introduction, pp. xxii.-xxiii. Ch.56