VI PREFACE 



and biochemists have disentangled its chemical processes as thoroughly 

 as they did those of respiration — which is still a long way to go. As a 

 matter of fact, the kinetic aspects of respiration themselves are not ade- 

 quately known, and will have to undergo hard study sooner or later. 



Mr. Earl E. Jacobs not only kindly checked the derivation of kinetic 

 equations in Chapters 26, 27, and 28, but has contributed much original 

 thought and work to their development and interpretation ; it is a pleasure 

 to thank him for his unstinted assistance. 



Much of the work on this volume was carried out while I was a member 

 of the Solar Energy Research Project at the Massachusetts Institute of 

 Technology. My thanks are due to the Project Committee and its chair- 

 man, Professor Hoyt C. Hottel, for generous assistance. I am equally 

 indebted to the Photosynthesis Research Project, Department of Botany, 

 University of Illinois, and Professor Robert Emerson, whose understand- 

 ing and help have made the termination of the work possible. 



Mrs. Carolyn Baer, Mrs. Marjorie Goodrich, and Mr. T. R. Punnett 

 have given me valuable aid in the reading of the proofs and the checking 

 of the bibliography. 



Eugene I. Rabinowitch 



Urhana 

 June 1951 



