VI CONTENTS. 



CHAPTER V. 



Process of Nutrition solely Vital, 70 ; Secretion also Results 

 from Death of Bioplasm, 72 ; Specific Kinds of Protoplasm, 

 75 ; Fletcher's Dilemma, 76 ; Difficulties of the Protoplasmic 

 Theory, 78 ; By-products are always formed in Secretion, 80 ; 

 By-products of Bacterial Life, 81 ; Absorption, 82 ; Re- 

 gressive Metamorphosis, 87 ; Absorption a Metainorphic 

 Process, 89 ; Bone Absorption, 90 ; Blood Formation, 91 ; 

 Bioplasts of Capillaries, 94. 



CHAPTER VI. 



Cell and Protoplasm History since I860, 96 ; Max Schultze, 97 ; 

 Haekel, 100 ; Briicke, Lockhart Clarke, 102 ; Strieker, Ranke, 

 Van Beneden, on the Nucleus, 103 ; Cell Theory virtually 

 given up, though nominally held, 104 ; Theory of One 

 Sole Living Matter not generally Adopted, 105 ; Bastian 

 and Cleland's Objections, 106. 



CHAPTER VII. 



Commentary on Beale's Nerve Theory, 109 ; Kinds of Nerve 

 Fibres, 111 ; No Nerve Ends, 113 ; Extreme Subdivision of 

 Nerve Fibrils, 115 ; Nerve Centres, 116 ; Protoplasm the 

 Only Living Part of Nerves, 119 ; Nerve Action not Mere 

 Conduction, 121 ; Nerve Force probably of One Kind only, 

 123; Trophic Nerve Influence denied by Beale, probably 

 erroneously, 124 ; Nature of the Nerve Current, 126 ; Argu- 

 ments for and against its being Electricity, 127* 



CHAPTER VIII. 



Commentary on Beale's Muscle Theory, 130 ; Beale's Anatomy 

 of the Fibre, 131 ; it does not contain Protoplasm, 132-3 ; 

 All Muscles contain Nerves which evolve the Force, 134 ; 

 Schiff and Kiihne on Idio-Muscular and N euro-Muscular 

 Irritability, 136 ; Kuhne's Nerveless Zones, 136 ; Chemical 

 Irritants said to prove Idio-muscular Irritability, 138 ; Gal- 

 vanism said to furnish the Force for Contraction, 140 ; 

 Various Authors on the Histology of the Fibre, 141 : Analogy 

 of Muscular with Electro Magnetic Action, 144 ; Muscle 



