On the application, however, of this amalgam to the surfaces of either gilding metal, copper, brazen, orsimilored articles, it is found that as there is no chemical affinity, and consequently no principle of mutual cohesion between the substances thus brought into contact, the direct union of them is impossible.[…] [Y]ellowsimilored goods must only have the mereury fairly removed from them.[…]Similored articles are the best adapted to show the extent over which the metal can be spread, since the brass amalgam seems to have a more powerful affinity for the amalgam of gold.