Finally, the ovoids of the ring are also made more elaborate,
showing thirty-six atoms instead of fourteen. In this way the clever
builders have piled up in zirconium no less than 1624 atoms.
ZIRCONIUM: One Carbon atom 216
4 _c_ of 212 atoms 848
12 _d_ of 36 " 432
Central globe 128
----
Total 1624
----
Atomic weight 89.85
Number weight 90.22
[Illustration: PLATE XVI.]
SILICON (Plate XVI, 1) is at the head of the group which corresponds to
carbon on the opposite turn of the lemniscate. It has the usual eight
funnels, containing four ovoids in a circle, and a truncated "cigar" but no
central body of any kind. All the funnels are alike.
SILICON: 8 funnels of 65 atoms 520
Atomic weight 28.18
Number weight 520/18 28.88
GERMANIUM (Plate XVI, 2) shows the eight funnels, containing each four
segments (XVI, 4), within which are three ovoids and a "cigar.
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