Hall, Carl (1921-1996)Shull, Jim2022-07-162022-07-1619671967https://doi.org/10.31096/PNAA-CH-19https://hdl.handle.net/10177/19111Educational use is permitted without permission. Permission is required for additional uses. See http://library.willamette.edu/external/commons/conditions_of_use/ for more information.http://rightsstatements.org/vocab/InC-EDU/1.0/Carl Hall Slide - CH-19: LightningImage