The conclusion of the previous article (Brown, 1990) that the sharpness of halo rings established the constancy of radioactive decay rates is examined and rejected. The conclusion is found to rest on uniformitarian assumptions, the validity of quantum mechanics at all past times, and on the view of the relation between "miracles" and scientific considerations. Lastly, some comments are made on some faulty claims relative to the proximity of Po and U halos and on the implications of the darkness of halo rings and/or densitometer studies.