Contents 



H Survey of Luminous Organisms: Problems and Prospects 



E. Newton Harnty 1 



Luminescence Spectroscopy of Molecules and the Photosynthetic 

 System 



R. S. Becker and M. Kasha 25 



Light Saturation of Delayed Light Production in Green Plants 



William Arnold 47 



Fluorescence Spectrophotometry of Photosynthetic Pigments 



C. Stacy French 51 



Kinetics of Chemiluminescence of the 2,3-Dihydrophthalazine-l, 

 4-diones 



Paul C. Wilhelmsen, Rufus Lumry, and Henry Eyring 75 

 Spectroscopic Investigations of Luminescent Systems 



C. J. P. Spruit and A. Spruit-van der Burg 99 



Recent Studies on the Chemistry of Cypridina Luciferin 



Frederick I. Tsuji, Aurin M. Chase, and E. Newton 

 Harvey 127 



Biochemistry of Firefly Luminescence 



W. D. McElroy and J. W. Hastings 161 



Firefly Luciferin 



Bernard L. Strehler 199 



Factors and Biochemistry of Bacterial Luminescence 



Bernard L. Strehler 209 



Purification and Properties of Bacterial Luciferase 



J. W. Hastings and W. D. McElroy 257 



Inhibition and Activation of Intracellular Luminescence 



Frank H. Johnson 265 



'^ Physiological Control of Luminescence in Animals 



J. A. C. Nicol 299 



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