The possibility of preparing monatomic hydrogen (H1) at high densities seems to have come a stage closer with three papers published in recent issues of Physical Review Letters. Two separate research groups have simultaneously reported the first observations of magnetic resonance from H1 held at liquid helium temperatures: Crampton, Greytak, Kleppner, Phillips, Smith and Weinrib of the Massachusetts Institute of Technology (Phys. Rev. Lett. 42, 1039; 1979); and Hardy, Berlinsky and Whitehead of the: University of British Columbia, Vancouver (op. cit., 1042). On a slightly different tack, Guyer and Miller of the University of Massachusetts, Amherst, have calculated how H1 Imay be expected to interact with a helium coating on the wall of its containing vessel (op. cit., 1754).