CONTENTS XV 



Chap. 37, conld. PaGE 



(a) Quantum Yield 1828 



(b) Polarization 1830 



(c) Quenching 1831 



(d) Activation I835 



(e) Sensitization I835 



(f) Fluorescence of Colloidal Chlorophyll Solutions 1837 



(g) Fluorescence of Bacteriochlorophyll and Protochlorophyll . 1837 

 (h) Fluorescence of Phycobilins 1838 



5. Chemiluminescence of Chlorophyll in vitro and in vivo 1838 



6. Light Absorption bj^ Pigments in vivo 1841 



(a) Absorption Spectra of Leaves and Algae 1841 



(b) Two Forms of Chlorophyll in vivol 1847 



(c) Absorption Spectra of Purple and Green Bacteria 1849 



(d) Phycobilin Spectra in vivo 1856 



(e) Changes in Absorption Spectrum during Photosynthesis .. . 1856 



(f) Calculation of True Absorption Spectra from Transmission 



and Fluorescence Spectra of Suspensions 1863 



6A. Scattering by Pigment Bodies in vivo 1866 



7. Fluorescence of Pigments in vivo 1867 



(a) Absolute Yield 1867 



(b) Sensitized Fluorescence in vivo 1868 



(c) Re-absorption of Fluorescence 1879 



(d) Fluorescence of Protochlorophyll in vivo 1881 



(e) Fluorescence of Chlorophyll c in Diatoms 1882 



(f) Changes of Fluorescence Intensity Related to Photosyn- 

 thesis 1882 



Bibliography 1882 



D. Kinetics of Photosynthesis 1886 



1. The Carbon Dioxide Factor 1886 



(a) Utilization of Bicarbonate 1886 



(b) Carbon Dioxide Curves 1892 



(c) Carbon Dioxide Compensation Point 1898 



(d) Carbon Dioxide Supply through Roots 1901 



(e) Isotopic Discrimination 1901 



2. Other Chemical and Physical Factors 1902 



(a) Catalyst Poisons 1902 



(b) Oxygen 1912 



(c) Water Factor 1918 



(d) Inorganic Ions 1919 



(e) Various Organic Compounds 1921 



(f) Ultraviolet Light 1921 



3. Photosynthesis and Respiration 1925 



(a) C(14) Studies 1926 



(b) 0(18) Studies 1929 



(c) Polarography 1936 



4. Maximum Quantum Yield 1940 



(a) Experiments by Warburg and Co-workers since 1950 1941 



(b) Other New Manometric Measurements 1956 



(c) New Nonmanometric Measurements of Quantum Yield. . . 1956 



