Article about dental hygiene written by Albert M Gray, M.D., copied from the Chicago Tribune for "The Daily News," tacked to a wallboard

Paulus, Otto K. (Otto Karl), 1893-19582022-07-152022-07-1519161916-10-21PLS90B182https://hdl.handle.net/10177/16214glass plate negativesEducational use is permitted without permission. Permission is required for additional uses. See http://library.willamette.edu/external/commons/conditions_of_use/ for more information.Article about dental hygiene written by Albert M Gray, M.D., copied from the Chicago Tribune for "The Daily News," tacked to a wallboardImage