Cavendish Laboratory : Four tubes for radioactivity research used by Rutherford and Royds from about 1907-8
Cavendish Laboratory
<p style='text-align: justify;'>The four tubes are labelled. ML23 is a spectrum tube, where helium is produced by the decay of radium. ML24 is a spectrum tube used to study the spectrum of radon decays. ML25 is a fine capillary tube for determining the condensation point of radon at different pressures. ML26 is a tube used to determine the volume of radium emanation (radon) in equilibrium with 1 gm of radium.</p>