xx SYNOPSIS 



Certain electrical laws Physiological and electrical diagrams 

 Artificial muscular fibre Discharge or neutralisation of charge 



Further diagrams How the nerve-fibres connect with groups 

 of sarcomeres Muscle extended and contracted The plane of 

 Hensen Condenser-action The " Muscle Telegraph " of Du 

 Bois-Reymond Physiology of muscular fibre considered 

 Stimuli not various forms of energy Clear spaces may be 

 " points " Stimuli not discharging forces Effect of rise or 

 fall of temperature upon muscular fibre Excised muscle 

 Difference between the living and the non-living Comparison 

 with frog, toad and tortoise Excitability of muscle when nerve 

 dead Compared with apple Independent muscular activity 

 reviewed Wrong to say plants have no nerves Reasons 

 therefor Effect of poisons upon nerves and plants Curara 

 and nux vomica Muscle-curve due to single induction shock 

 examined - - 144 



Sarcolemma and Neurilemma : Both elastic and both dielectric in 



character Argument ^ -161 



Other Insulating Processes : Sciatic nerve of cat Endoneurium, 

 perineurium and epineurium-^The electrical function of lymph 



Insulation of submarine and screened land cable Inductive 

 interference - - - 161 



The Termination of Nerves in Muscle : End -organs Fibres branch 



Medullated nerve-fibres Plexuses of involuntary muscle 

 Each nerve-fibre separately insulated Plexus of Auerbach - 165 



Dendrons and Synapses : Cells of Purkinje Neuroglia and con- 

 nective tissue Dendrons, axon and neuron Cell processes 

 Synaptic junctions Contiguous but not continuous structures 

 Propagation of electric force by molecular action Sympathetic 

 cell : arborisations Physiological path of chains of neurons 

 uninterrupted Synapse compared with condenser Necessity 

 for insulating processes in the body .... 168 



Connection of Muscles and Bones : Whole action of muscle the sum 

 of the separate actions of all the fibres Fan-shaped muscles 

 Semi-pennate muscles Pennate muscles Parallelogram of 

 forces Work performed by muscles conditioned by their 

 attachment to the bones Sesamoid bones - - 172 



Response of Muscles and Nerves to Electrical Stimulation : Nutrition 

 of the nerves When impaired Nerve degeneration and its 

 effect on muscle Changes in the excitability of muscle Con- 

 tractions caused by constant and induced currents Degenera- 

 tion of irotor nerve Response of muscle to constant current 

 Muscular paralysis Paralysis due to disease .- 178 



