GENERATION OF ANIMALS 



Oeneration in Blooded Animals — I. Vivipara 



BK. CH. 



II. 4 Man and the " perfect " animals. 



(a) The secretion of the generative residues. Semen is not 



produced by all male animals. 

 (6) The male — either by means of semen or directly — " sets " 



the purest portion of the female's residue and so produces 



a fetation. 



(c) The development of the fetation. The heart is formed 

 first, as being the seat of nutritive Soul. 



(d) Theory of the action of the male factor on tin? female. 

 Nutritive Soul ases heat and cold as " instruments." 



5 (e) The female cannot generate alone because it lacks sentient 



Soul (in some animals, however, the sexes are not separ- 

 ate). 



6 (/) Later development of the fetation. The upper parts 



develop first (but not so in Insects and C'ephalopods). 



(g) The differentiation of the parts is effected by means of 

 connate pneuma. 



(A) The order of development of the parts. 



(t) The bloodvessels ; the " uniform " parts ; nails, etc. ; 

 sinews and bones. , 



(i) Heating and cooling are employed as instruments in the 

 development of the fetation. Necessity and purpose. 



{k) The brain ; the eyes. 



(t) Bones, etc. 

 (m) Two grades of nonrishment : " nutritive " and " growth- 

 promoting." 



(») Teeth. 



7 (o) Function of the umbilicus and cotyledons. 



(p) Hybrids ; sterility ; mules ; deformed animals. 



Generation in Blooded Animals — //. Ovipara {laying 

 perfect eggs) 



III. 1 Birds and Quadrupeds. 



(a) Greneral. 



(b) Wind-eggs. 



(c) Difference between yolk and white : the white is hot and 

 is the seat of the Soul-principle. 



2 ((f) Shape of the egg. 



(e) Growth of the egg. 



(/) Incubation by parent animal (not needed for quadrupeds' 



(g) Behaviour of white and yolk during incubation. 

 (h) Description of the umbilical cords, etc. 



Generation in Blooded Animals — ///. Ovovivipara {laying 

 perfect eggs) 



3 Fishes (A) Selachia. 



(o) Description of the development of the embryo. 

 (b) Differences as between Birds and Selachia (including 

 reference to Miutelus laevis). 



Ixxiii 



