Joseph Priestley (1733–1804) and his Discovery of Photosynthesis in 1771.- 1. Oxygen Evolution in Light Flashes; Changes in Energy Transfer to Reaction Center 2 upon Pigment State Transitions and Inhibition by DCMU and FCCP.- 2. Studies on the quenching Properties of Photosystem II Electron Acceptor.- 3. The photoactive Chlorophy11-ajj in Photosynthesis.- 4. On the Origin of Light Emission from Chlorella pyrenoidosa.- 5. The Acceleration of the Deactivation Kinetics in the Watersplitting Enzyme System of Photosynthesis by Chemicals.- 6. Kinetic Studies on C550 and its Correlation to the Fluorescence Induction in Isolated Chloroplasts.- 7. The primary Photochemical Reaction of Photosystem II.- 8. Electron Donation in Photosystem II.- 9. On the Mechanism of Water Decomposition during Photosynthesis.- 10. Effect of Different Prei11uminations on the Deactivation of Oxidized forms of Photosystem II Electron Donor.- 11. Action Spectra for Two Oxygen Uptake Reactions in Isolated Wheat Chloroplasts Irradiated without Added Oxidant.- 12. Deactivation of the Oxygen Evolving Reactions Complex in Isolated Chloroplasts. Actions of Carbony1-cyanidem- pheny1-hydrazone, Desaspidin and Tetrapheniboron.- 13. Distribution of Short Wavelength Quanta between Parallel Light Reactions.- 14. Electrometric Investigation of the Reversible Oxidation of Chlorophy11.- 15. Fluorescence Induction Studies in Isolated Chloroplasts. IV. The Inhibition of Electron Transfer from Primary to Secondary Electron Carriers of PS-II at low Temperature and by DCMU.- 16. Chlorophyll Fluorescence Induction in Green Plants at Oxygen Deficiency.- 17. Light Induced Fluorescence Changes in Photosynthetizing Organisms.- 18. New Results about Chlorophyll Fluorescence “in vivo”.- 19. Delayed Light Studies in Photosynthetic Energy Conversion. V. Millisecond Emission from Digitonin Subchloroplast Fractions.- 20. Delayed Light Studies in Photosynthetic Energy Conversion. VI. Effects of Phosphorylation Inhibitors on Delayed Light in the Millisecond Time Range.- 21. Luminescence Study of Photoactivated Chloroplasts in Normal and Damaged State.- 22. Delayed Light Emission in DCMU treated Chlorella: Temperature Effects.- 23. Salt and pH Effects on the State and Activity of Pigment Systems in Chlorella Cells.- 24. On the Mechanism and Regulation of Chlorophyll Photosensitizing Action.- 25. Kinetics of Various Emission Processes in Chloroplasts, Evidence for Various Reaction Types.- 26. Decrease in the Degree of Polarization of Chlorophyll Fluorescence upon the Addition of DCMU to Algae.- 27. Magnetic Dichroism and Polarization of Fluorescence of Chlorophyll in Chlorella.- 28. Constant Peak Wavelengths and Variable Half-widths of the Major Forms of Chlorophyll.- 29. Photochemical Hydrogenation of Photochlorophyl1 and its Derivatives to Chlorophyll Level.- 30. Intermediate Electron Transport in Porphyridium: EPR Studies.- 31. The Fragments of Photosynthetic Electron Transfer Chain in Model Systems.- 32. Motion of Excitons in Photosynthetic Units.- 33. Excitation Energy Transfer between Biliproteins and Chlorophyll.- 34. Facilitation of Energy Trapping by Different Forms of Chlorophyll.- 35. Chlorophyll Study in Oriented Films.- 36. Electron Exchange Reactions on Light-Sensitive Silver Salts.- 37. Fluorescence Induction Phenomena in Chlorophyl1-Coated Sol id Surfaces.- 38. Fluorescence Induction in Photosynthetic Bacteria.- 39. Photochemical Properties and Energy Transfer in Reaction Center Preparations of Rhodopseudomonas spheroides.- 40. Studies of Various Reaction Center Preparations from Rhodopseudomonas spheroids, Strain Y..- 41. Exact Calculation of the Absorption Profile in an Externally Lighted Cylinder.- 42. On the Role of Plastoquinone and on the Nature of the Primary Acceptor of Photosystem I in the Photosynthetic Electron Transport of Chloroplasts.- 43. Reactions of PIastoquinone and Other Photosynthetic Intermediates in Intact Algae and Chloroplasts.- 44. Ferredoxin as Electron Donor to Nitrogenase in Photosynthetic Microorganisms.- 45. The Mechanism of Electron Transfer in Plant-Type Ferredoxins.- 46. On the Enzymology of Ferredoxin-NADP Reductase.- 47. Whole Cell and Chloroplast Reactions of Algal Mutants Deficient in Cytochrome f (552).- 48. The Reaction between Chlorophyll aI and its Primary Electron Donators.- 49. The Reducing Side of Photosystem I: Role of Ferredoxin Reducing Substance (FRS).- 50. P 430: A Possible Primary Electron Acceptor of Photosystem I.- 51. On the Isolation of the Possible Primary Acceptor of Photosystem I by Immunochemical Methods.- 52. On the Mechanism of Photosynthetic Sulfate Reduction.- 53. Oxidation of Chlorophyll a Form by Ferricyanide and H0QN0.- 54. Electron Transport System Associated with Oxygen Evolution in Chloroplasts. Reaction Sites of Inhibitors and Electron Donors.- 55. Electron Transport Properties of Chloroplasts from Aged Bean Leaves and the Relationship to the Manganese Content of the Chloroplasts.- 56. Photooxidation of Cytochrome b-559 in Leaves and Chloroplasts at Room and Liquid Nitrogen Temperatures.- 57. Some Observations on Electron Carriers Related to Photosystem II of Green Plants.- 58. Effects of Hydroxylamine and DCMU on Photosystem II.- 59. Trypsin Inhibition of System II Electron Transport.- 60. Isotopic Exchange, Photosynthesis and Oxygen 18.- 61. Possible Role of Phytochrome in Phosphorylations and Photosynthetic Oxygen Evolution in Corn Leaves (Zea Mays).- 62. Deficiency of Photosystem II in agranal Bundle Sheath Chloroplasts of Sorghum bioolor and Zea mays.- 63. Concept on the Role of Epoxy Carotenoids in Plants.- 64. Kinetic Studies on the Xanthophyll Cycle of Lemna gibba, L. — Influence of Photosynthetic Oxygen and Supplied Reductor.- 65. Correlation Between Sulfide Oxidation and Photosynthetic Electron Transfer.- 66. Cyclic Electron Flow and Respiratory Inhibition in Wild Type and Mutant Strains of Chlamydomonas reinhardi.- 67. Electron Transport in Rhodospirillum rubrum during Photoaerobiosis.- 68. Adaptability of Photosynthetic Electron Transport in Rhodospirillum rubrum.- 69. Studies on the Electron Transport Chain of Three non Photosynthetic Mutants of Chlamydomonas reinhardi.- 70. Changes in Fluorescence and Absorbance during Synchronous Growth of Scenedesmus.- 71. Sites of Inhibition of Photosynthetic Electron Transport by 1,1,1-Trichloro-2,2,-bis (p-chloropheny1) ethane (DDT).- 72. The Site of Ferricyanide Photoreduction in the Lamellae of Isolated Spinach and Maize Chloroplasts: a Cytochemical Study.- 73. Quantum Yield of Photosynthesis and the Emerson Enhancement Effect.- 74. Action Spectra for Partial Reactions of Photosynthesis.- 75. Influence of Dark Starvation on Photochemical Activities Involving Photosystem I or Photosystem II.- 76. Electron Transport Pathways Between Photosystem I and Photosystem II.- 77. Different Types of Cooperation Between Electron Transport Chains in Chloroplasts.- 78. Improved Action Spectra of Light Reaction I and II.- 79. Studies of Possible Physiological Regulators of Light Reactions of Photosynthesis.- 80. The Photosynthetic Electron Transfer System in Agranal Chloroplasts.- 81. The Effect of Dibromothymoquinone on Photosynthetic Electron Transport Reactions in Whole Cells of the Red Alga Porphiridium oruentum.- 82. Properties of a Small Photosystem II Particle Obtained from Spinach Chloroplasts.- 83. The Coupling of Electron Transport to the Reaction Centers in Intact and Fragmented Grana Stacks and the Isolation of Photochemical Subunits.- 84. Further Properties of Stroma Lamella Photosystem I.- 85. Photochemical Activities of Chloroplast Fragments Obtained by the Action of Digitonin.- 86. Photochemically-Active Particles from Chloroplasts Fragmented in a French Pressure Cell.- Author’s Index.