8 GROWTH OF PLANTS 



consider it as such and provide for it as an integral part of research. Later, 

 the quarterly journal, Contributions from Boyce Thompson Institute, was 

 started, as well as a series of Professional Papers dealing with practical 

 applications of researches at the Institute. The latter consist mainly of 

 separates published in trade journals or other professional periodicals. 

 Several members of the staff have published one-chapter monographs in 

 treatises on various phases of biological science or in review periodicals. 



(6) Finally it was decided not to duplicate botanical research that was 

 already being adequately covered in the northeastern United States. This 

 was especially true of systematic botany and genetics. This left fundamental 

 researches in plant physiology, pathology, and biochemistry as the main 

 fields of activity for the Institute. 



Organization and Purpose of the Book 



The first eleven chapters of this book describe the researches on twelve 

 larger projects with their many scientific and practical ramifications. Most 

 of these projects have been in operation throughout the life of the Institute 

 and some phases of all of these are still under study except for the Duck 

 Food and Plant Cell Membranes projects, the first of which was finished and 

 the second discontinued. Chapter XII presents fourteen shorter projects 

 which, in the main, have been finished or discontinued. 



This book is a critical summary of the researches carried on at Boyce 

 Thompson Institute. Only such outside researches are discussed as are nec- 

 essary to orient the work at the Institute generally in the whole field of 

 plant science. A critical discussion of all the literature on every subject 

 treated would expand the work far beyond a moderate sized volume. 



Acknowledgments 



The author expresses his gratitude to each member of the scientific staff 

 of Boyce Thompson Institute for critically editing the portions of the man- 

 uscript covering his researches. Gratitude is also due the Publication Com- 

 mittee (F. E. Denny, A. E. Hitchcock, N. E. Pfeiffer, L. P. Miller, S. E. A. 

 McCallan, Z. Troy, B. M. Brooks) of the Institute for editing all the manu- 

 script for the book. The author gives special recognition to the several 

 members of the Institute who wrote chapters or sections of the book. The 

 follomng is a list of co-authors with the portions written by each: Dr. P. W. 

 Zimmerman, Chapter VI — "Plant Hormones"; Mrs. Wanda K. Farr, 

 Chapter VIII — "Plant Cell Membranes"; Dr. Albert Hartzell, Chapter X 

 — "Research on Insecticides"; Dr. S. E. A. McCallan, Chapter XI — 

 "Fungicide Investigations"; and Dr. W. J. Youden, last two topics of 

 Section 13 and all of Section 14 in Chapter XII — "Miscellaneous Chap- 

 ter." Special gratitude is due Mrs. Bettie M. Brooks for directing the typing 

 and looking after the details of arrangmg chapters, sections, and figures 



