--
54
4 pairs of funnels of 54 atoms 216
Atomic weight 11.91
Number weight 216/18 12.00
TITANIUM (Plate III, 6, and XV, 2) has a complete carbon atom distributed
over the ends of its four arms, a pair of funnels with their linking atom
being seen in each. Then, in each arm, comes the elaborate body shown as 3
_c_, with its eighty-eight atoms. A ring of twelve ovoids (3 _d_) each
holding within itself fourteen atoms, distributed among three contained
globes--two quartets and a sextet--is a new device for crowding in
material. Lastly comes the central body (4 _e_) of five intersecting
tetrahedra, with a "cigar" at each of their twenty points--of which only
fifteen can be shown in the diagram--and a ring of seven atoms round an
eighth, that forms the minute centre of the whole. Into this elaborate body
one hundred and twenty-eight atoms are built.

TITANIUM: One carbon atom 216
4 _c_ of 88 atoms 352
12 _d_ of 14 " 168
Central globe 128
----
Total 864
----
Atomic weight 47.74
Number weight 864/18 48.00
ZIRCONIUM (Plate XV, 3) has exactly the same outline as titanium, the
carbon atom is similarly distributed, and the central body is identical.
Only in 5 _c_ and _d_ do we find a difference on comparing them with 4 _c_
and d. The _c_ ovoid in zirconium shows no less than fifteen secondary
globes within the five contained in the ovoid, and these, in turn, contain
altogether sixty-nine smaller spheres, with two hundred and twelve atoms
within them, arranged in pairs, triplets, quartets, quintets, a sextet and
septets. 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
[Illustrat