The abundances of the heavy elements.

Abundance regularities for heavy nuclei (A greater than 58) are investigated and formulated as abundance rules. Abundance values of carbonaceous chondrites of type 1 and 2 as well as most probable values for primordial abundances are listed. The abundance rules definitely require minor correctons of the empirical values. A measurement of the (u, gamma) cross-section of Pd-104 would make possible to decide whether type-1 or type-2 carbonaceous chondrites have a more primitive elemental composition.