222 
Proceedings of the Royal Society 
this the author finds to he a dodecatom (or rather an isobaric mole- 
cule), each constituent element of which is 3HO 
= 36 aq = AQ = 36 x 9 = 324: when H = l. 
He then proceeds to deduce theoretically the specific gravities of 
between seventy and eighty of the most interesting and abundant 
of natural and chemical substances, somewhat in the order in which 
they are treated in chemical works. 
A composite molecule, consisting of the two isometrical mole- 
cules Xj 2 and X 20 , differentiating each other, and giving Xj^ 2 ^ 2 o = ^325 
gives the idea of great molecular perfection and stability' — as, for 
instance, repose in the presence of oxygen, &c. He finds, ac- 
cordingly, that such is the molecule of the precious metals, or metals 
that remain pure, and the diamond ; gold and silver having normal 
or aqueous volumes, platinum and aluminium half, and bismuth 
and antimony double volumes ; the platinum and antimony mole- 
cules being also differentiated, and therefore their molecular struc- 
tures equivocal. Thus — 
G-old a = 
Au,2Au, 
AQ 
197 X 12 -h 20 
324 
19T. Expt. 19-2. 
Aluminium Gf = 
324 ^ = 2-7. Expt. 2-6. 2-7. 
The diamond, by the greater openness of X 20 than X ^2 (when both 
are formed of pentagonal elements), and its more ready combusti- 
bility, almost enables us to demonstrate analytically this composite 
molecule of X^ 2 ^ 2 o* light an element as carbon, however, 
when constructed by nature, it is not the single element CJ 2 C 20 , but 
the dodecatom (Ci 2 C 2 o)i 2 that is in relation with the unit volume of 
water. Thus — 
Diamond Gr 
Unburnt 
residuum, 
}(4 = 
= Expt. 3-55. 
12x6x12 
(C^12)l' 
AQ 
324 
2-67. Expt. 2*67 (Jaquealine). 
Coke andOrapliite? a= 
