12 THE EVOLUTION OF CONTINUITY 



Chapter XIX 



PAGE 



The Evolution of the Vertebrate 180 



What was probably the plan of the marine segmental type from 

 which Man evolved ? — The megazooidal derivation this type must 

 have had — The light which Aurelia throws on the subject — Man 

 evolved from a primitive piscine type. 



The evolution of the typical Fish — How the Fish's ancestry must 

 have been serially-medusoid in structure — The evolution of the 

 Fish's respiratory and circulatory systems — The nectocalycine 

 canals and the branchial arches — The formation of mouth and 

 gill-clefts — Terminal compression — The probable factors which 

 called for the formation of a heart and the institution of a circu- 

 latory system — The closure of the vessel system — The firet beats 

 of the heart — The circulatory system of Ssenuris — The evolution 

 of the Fish's nervous system — The alimentary tract. 



Chapter XX 



The Evolution of the Atypical Fish .... 196 



The " Atypical Fish " exemplified by the Cephalopod — The effects 

 of the absence of locomotion in the primitive type — How a, ter- 

 minally compressed head would come to be formed at the end 

 which in the Typical Fish becomes the tail end — The formation 

 of a primitive brain ; of gill-cleft, and of vascular and respiratory 

 systems — The factor of the rhythmic contraction of body -walls — 

 The branchial arches ; the alimentary tube, and the formation 

 of an anus — Support for foregoing suggestions from the structure 

 of the present-day Cuttlefish — Its general anatomy — Further sup- 

 port from the methods of Cuttlefish movement — Man has not 

 evolved through a primitive Cephalopod type. 



Chapter XXI 



The Evolution of Matter 204 



Indications that Matter has evolved into being, and has done 

 so through the Intensification of Continuity — Matter and Force— 

 The possibility of the " ultimate unit " of Matter being an " in- 

 sulated " force-system — Through the alternation of Attraction 

 and Repulsion, the former force being dominant, an ascending 

 scale of Matter-systems could have resulted, each manifesting 

 a multiplication of its forerunner's Continuity ; after the manner 

 already shown to have occurred with living Continuity-types — 

 Matter is Potential Energy 



Electrons, and Atoms — The different species of atoms and ele- 

 ments — The significance of their distinctive atomic weights — The 

 Periodic Law, or Law of Octaves — Probably a key to the problem — 

 Some possibilities the Periodic Law suggests. 



Chapter XXII 



The Origin of Species 211 



The term used here in the sense of the Origin of Sub-species 

 within the Fundamental Species of Continuity. 



Bough outline of Darwin's theory — Some objections to the theory 



Several new propositions in connection with the Origin of Species — 

 The Mutation Theory. 



