This issue of the Sierra Club Bulletin discusses the scientific research of Norman Roy Appleton of Santa Fe, New Mexico. His illustration is featured on the cover. The issue may be viewed online on the Sierra Club website: https://www.sierraclub.org/sierra/1972-july-august. Our family wishes to thank the Sierra Club for its interest in my grandfather's work. Norman wanted more people to know about his 1930s tent caterpillar research and natural ways to stop infestations (vs. manmade chemicals). His work was funded via the WPA. More detailed information may be found on Ancestry.com. I am the sole creator and manager of the Appleton, Ten Eyck and Booker family tree and questions should be directed to me or to the University of New Mexico, Albuquerque, Zimmerman Library. Thank you!