Early stereoscopic pair of cloud-track photographs, (1913-1914), illustrating electrons ejected by a narrow beam of X-rays (black-and-white print - photograph)
Stereoscopic pair of cloud-track photographs showing the passage of an X-ray beam through a copper target (black-and-white print - photograph)
Photogaphic print, showing a secondary beta-ray ejected from platinum by X-rays, together with a secondary beta-ray due to platinum K-radiation (black-and-white print - photograph; diagram; label)
Photographic prints, of early stereoscopic pair of cloud-track photographs, (1913-1914), illustrating a fan of alpha-rays (black-and-white print - photograph)
Two black and white photographic print of electron tracks in the Wilson cloud chamber (black-and-white print - photograph; diagram)
Stereoscopic pair of cloud-track photographs showing the passage of an X-ray beam through a copper target (black-and-white print - photograph)
Black and white photographic print, stereoscopic pair of cloud-track photographs showing tracks of electrons (black-and-white print - photograph)
Black and white photographic print, showing secondary electrons produced in air by gamma-rays (black-and-white print - photograph; label)
Photogaphic print and diagram, showing a different classes of beta-ray tracks ejected from air by hard X-rays (diagram; black-and-white print - photograph)
Photogaphic print and diagram, showing a typical track of a slow beta-ray (diagram; black-and-white print - photograph)
