2022-06-212022-06-211973-10-17https://hdl.handle.net/10605/361876Negative of two men with a diagram on a chalkboard taken on October 17, 1973 for a Texas Tech chemistry department brochure.1 negative : b&w : 120 mm.The images in this collection are for study purposes, teaching, classroom projection and research only. To use these digital files in any form, an attribution of "Courtesy of the Southwest Collection/Special Collections Library" must accompany the image.Texas Tech University. Department of Chemistry.Texas Tech University. Department of Chemistry--Faculty.Image