William Behrens also worked with us for a while and wrote a Finally, I owe a great debt of gratitude to Marjorie W. Sumner, 



few abstracts. who carried most of the load of searching the literature. She spent 



I also want to thank the staff of the several libraries at Stony many hours in the various parts of the SUNY Stony Brook 



Brook, not only the main library, but also its branches in the Divi- library and in some other libraries, hunting down elusive titles, 



sion of Biological Research and Department of Earth and Space and her knowledge of these libraries and their people was of in- 



Sciences, and the Health Sciences Library. Their help in locating estimable value, 

 many publications, and in obtaining many through interlibrary 

 loan, was invaluable. 



