Nic. de Anglia in Bib. Nat. Paris (MSS.), No. 7015; J. Rochon, _ibidem_, No. 7025; J. Segarra, 1528; J. Sylvius, 1550, 1560; L. Joubert, 1599; M. Sebitz, 1644, 1645; J.B. Pacuvius, 1554; J.C.G. Ackermann, 1821, in the introduction to Kühn's translation, p. lxxx; Ilberg in articles on "Die Schriftstellerei des Klaudios Galenos," in _Rhein. Mus._, Nos. 44, 47, 51, and 52 (years 1889, 1892, 1896 and 1897); I. von Mueller in _Quæstiones Criticae de Galeni libris_, Erlangen, 1871; Steinschneider in Virchow's _Archiv_, No. cxxiv. for 1891; Wenrich in _De auctorum graecorum versionibus et commentariis syriacis, arabicis, armiacis, persisque_, Leipzig, 1842. SYNOPSIS OF CHAPTERS BOOK I Chapter I Distinction between the effects of (_a_) the organism's _psyche_ or soul (_b_) its _physis_ or nature. The author proposes to confine himself to a consideration of the latter--the vegetative--aspect of life. Chapter II Definition of terms. Different kinds of _motion_. _Alteration_ or qualitative change. Refutation of the Sophists' objection that such change is only apparent, not real. The four fundamental qualities of Hippocrates (later Aristotle). Distinction between _faculty_, _activity_ (function), and _effect_ (work or product). Chapter III It is by virtue of the _four qualities_ that each part functions. Some authorities subordinate the dry and the moist principles to the hot and the cold. Aristotle inconsistent here. Chapter IV We must suppose that there are _faculties_ corresponding in number to the visible _effects_ (or products) with which we are familiar. Chapter V Genesis, growth, and nutrition. Genesis (embryogeny) sub-divided into histogenesis and organogenesis. Growth is a tridimensional expansion of the solid parts formed during genesis. Nutrition. Chapter VI The process of genesis (embryogeny) from insemination onwards. Each of the simple, elementary, homogeneous parts (tissues) is produced by a special blend of the four primary alterative faculties (such secondary alterative faculties being _ostopoietic_, _neuropoietic_, etc.). A special _function_ and _use_ also corresponds to each of these special tissues. The bringing of these tissues together into _organs_ and the disposal of these organs is performed by another faculty called _diaplastic_, _moulding_, or _formative_. Chapter VII We now pass from genesis to _growth_. Growth essentially a post-natal process; it involves two factors, expansion and nutrition, explained by analogy of a familiar child's game. Chapter VIII Nutrition. Chapter IX These three primary faculties (genesis, growth, nutrition) have various others subservient to them. Chapter X