THE snail, Helix pomatia, concentrates more calcium per unit body-weight in lesser time than most terrestrial animals, that is, 20–40 gm. calcium per kgm., about 50 per cent of which is deposited in ...

AMALDI, d'Agostino and Segrè 1 report that, using neutrons from a radon — alpha particle — beryllium source, they have induced an activity in indium of a very short half-life period (13 see.) and also ...