---

 

ACKNOWLEDGMENTS

We are indebted to Dr. S. Liebhold of the USDA FS, Morgantown, WV, Dr. S. Clarke of the USDA FS, Lufkin, TX and to Dr. J. Foltz of the University of Florida for their critical comments on earlier versions of the sampling paper reviews; to L. Fidgen for her reviews of seed and cone insect sampling papers; and to W. Mays, J. Wilker and K. Wilson for compiling >325 potential sampling papers.

 

---