INDEX 



Continuity of germ plasm, 153 

 Continuous phase, 30 

 Contractile vacuole, 171 

 Contraction of muscle, 93, 204 



- by stretching, 80 

 Contractures, 100 



Co-ordination of eye and hand, 119 

 Cornea, 115 

 Coronary arteries, 222 

 Corpus luteum, 1 56 

 Corpuscles of blood, 135, 223 

 Cortex inhibited, 129 

 Cortical points, stimulation of, 129 

 Cream, 30 



Cross-fertilisation, 154 

 Curare, 199 

 Current of injury, 210 



DARK-GROUND illumination, 4, 166 



Deamination, 76 



Deficiency diseases, 61 



Degeneration of nerves, 121 



Degradation of energy, 12 



Denitrifying organisms, 58 



1 )epression of freezing point, 22 



Depressor reflex, 146 



Desensitisation, 141 



Development of the frog, 226 



Dextrin, 70 



Diabetes, 136 



Diagrams, viii. 



Diaphragm, 88 



Diet, constituents of, 65 



Digestion, 66 



Direct adaptation, 158 



Dispersed phase, 30 



Dissipation of energy, 13 



Dissociation of oxy-h^emoglobm, b6 



- tension, 87 



Distance receptors, 107, 120 

 Distribution of water between phases, 



31 



Dividing nuclei, 226 

 Dogmatic presentation, vi. 



Dominant, 156 



Dorsal root ganglia, 124 



Drugs, action of, on the heart, 225 



Drum of ear, 108 



EARTHWORM, nervous system of, 123 

 Economical use of energy, 13 

 Effectors, 121 



Efferent fibres, 124 



Egg-cells, 153 



Electric charge on colloids, 33 



- waves, 113 



Electrical adsorption, 36, 38, 179 



- change in nerve, 130, 210 



changes in secretion, 83, 197 



charge on colloids, 177 



- resistance of living cells, 28 



- stimulation of amoeba, 165 

 Electrodes, 24 



- for heart, 207 

 Electrolysis, 24 

 Electrolytes, 25 



- action of, on colloids, 35 



- precipitation of colloids by, 178 

 Electrolytic colloids, 33 



- conductivity, 173, 174 



- dissociation, 23 

 Electrolytically dissociated colloids, 



, 33,34 

 Electrons, 6 

 Emulsions, 30 

 Emulsoids, 30, 177 

 Energetics, 10 



- laws of, 10, ii 

 Energy, 10 



of muscular work, 93 



- requirements of man, 63 

 Enterokinase, 82, 193 

 Entropy, 13 



Enzymes, 66, 189 

 Equation of state, 22 

 Equilibrium and death, 14 



- in ester and water, 68 



in photo-chemical reaction, 117 



under enzyme action, 67 

 Equimolecular solutions, 19 

 Erepsin, 75 



Esters, 64, 65 



hydrolysis of, 67 

 Ethyl-glucoside, synthesis of, by emul- 



sin, 191 



Evolution of nervous system, 122 

 Examinations, viii. 

 Excitation, 125 

 Excitatory nerves, 79, 149 

 Exhaustion, 126 

 Experiments, value of, vi. 

 Expired air, analysis of, 185 

 Explanation, meaning of, 7 

 Extent of surface, 31 

 Extero-ceptors, 119 

 Eye, H2 

 anatomy of, 213 



