LIST OF ILLUSTRATIONS 



1. Diagram illustrating liberation of potential energy in muscular 



contraction ........ 6 



2. Scheme to illustrate modern work on muscular contraction . 9 



3. Time relations of the electrical variation in the isometric 



response to two successive stimuli . . . '13 



4. Mechanical heat and electro-cardiogram of heart of Homarus 14 



5. Effect of excess of calcium on the perfused heart of Homarus 17 



6. Effect of removal of magnesium on the perfused heart ot 



Pecten . . . • • • • • . j8 



7. Effect of removal of calcium on the perfused heart of Pecten 19 



8. Diagram of ciliary motion ..... 



9. Relation of hydrogen ion concentration to ciliary movement 



10. Relation of oxygen consumption and mechanical activity of 



ciha to temperature ...... 



11. Relation of hydrogen ion concentration to the velocity of 



amoeboid movement ...... 



12. Effect of temperature on velocity of amoeboid movement 



13. Melanophores of Fundulus ..... 



14. Melanophores of Fundulus : effects of adrenaline. 



15. Results of variation of CO2 tension of inspired air of insect 



16. Dissociation curves of mammalian blood 



17. Dissociation curves of Arenicola blood 



18. Dissociation[]curves of Hamocyanin in Crustacean Blood 



19-20. Absorption spectra ...... 



21. Relation of amount of COj taken up by mammahan blood to 

 CO2 pressure ....... 



24 

 27 



29 



32 

 35 

 38 



39 



68 

 72 



74 

 76 

 78 



80 



