https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13986895Edit ImageSaveSaveEditCropCustom TextI.P. Pavlov and students in the vivisection room, Physiology Department at the Imperial Institute of Experimental Medicine, St Petersburg. Photograph, 1904.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 907 px | 300 dpiLarge JPEG 1574 x 1190 px | 300 dpiFree DownloadI.P. Pavlov and students in the vivisection room, Physiology Department at the Imperial Institute of Experimental Medicine, St Petersburg. Photograph, 1904.More