Adams omits the rare earths and the "radioactive elements" (i.e. the actinides) from the main body of his table and instead shows them as being "careted in only to save space" (rare earths between Ba and eka-Yt; radioactive elements between eka-Te and eka-I).
Adams udelader de sjældne jordarter og de "radioaktive grundstoffer" (dvs. actiniderne) fra den centrale del af hans system, og viser dem i stedet indskudt for at spare plads (sjældne hordarter mellem Ba og eka-Yt; radioaktive grundstoffer mellem eka-Te og eka-I).