CONTENTS vx 



I. Ether and Energy in the Evolution of Matter 1 



II. The Relations and Transformations of Energy during the 



Evolution of Matter 21 



III. The Relation of Inorganic to Organic Bodies 48 



IV. The Energies of the Organic World — the Biotic, the Cognitic, 



the Cogitic — and their Relation to Organisms 68 



V. The Biotic State of Energy 97 



VI. The Cognitic State of Energy 118 



VII. A Review of the Formed Constituents of Organisms 147 



VIII. Pentamorphogeny, or the Five Cooperating Causes in Organic 



Evolution 174 



IX. The Law of Proenvironment 205 



X. Cell Multiplication, and the Origin of Sexuality in Plants and 



Animals 243 



XI. The Evolution of Plants 300 



XII. The Evolution of Plants (Cont'd) 325 



XIII. The Evolution of Plants (Cont'd) 349 



XIV. The Evolution of Animals 374 



XV. The Evolution of Animals (Cont'd) : . 411 



XVI. The Evolution of Animals (Cont'd) 453 



XVII. The Evolution of Animals (Cont'd) 475 



XVIII. The Phylogeny of Animals 504 



XIX. The Relation of Higher Animals to Man 544 



• XX. The Physical Evolution of Man 570 



XXI. The Mental or Cogitic Evolution of Man in Relation to that of 



the Higher Animals 598 



XXII. The Operation of the Law of Proenvironment in the Evolution 



of Man 629 



XXIII. Morals as a Factor in Organic Evolution, and their Biological 



Origin 652 



XXIV. Religion as a Factor in Human Evolution 675 



XXV. Religion as a Factor in Human Evolution (Cont'd) 702 



XXVI, Religion as a Factor in Human Evolution (Cont'd) 724 



XXVII. The Competitive System Amongst the Lower Animals and 



Man 751 



XXVIII. The Cooperative or Social System Amongst Lower Animals 



and Man 768 



XXIX. Human Organization in Relation to Environment 798 



XXX. Probable Future Advances in Human Evolution 825 



Bibliography. Index 851 



ix 



76S47 



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