NOTES AND QUERIES. 
389 
If we now search out what are the chemical elements of the four systems 
of metalliferous veins of Freiberg, we have the table following. In it the 
elements are nearly arranged according to their frequency. Those which are 
found at the head of the list are the most abundant, but there is some uncer- 
tainty in the classification of those which are in the middle. Although Oxy- 
gen, Hydrogen, and Carbon play an important part, they are placed at the end, 
as not being characteristic. 
I. 
II. 
III. 
IV. 
Si 
Si 
Ca 
Bd. 
S 
S 
Si 
Si . 
Fe 
Fe 
S 
Ca 
As 
Zn 
Pb 
Fl 
Pb 
Pb 
Fe 
S 
Zn 
Cu 
Zu 
Pb 
Sb 
As 
As 
Zn 
Ca 
Ca 
Cu 
Cu 
Cu 
Ag 
Ag 
Fe 
Ag 
Mg 
Mn 
As 
Mn 
Mn 
Mg 
Sb 
Ba 
Al 
Ba 
Mg 
Fl 
Sb 
Fl 
Ag 
St 
Ba 
Al 
Mu 
aF 
Fl 
Sb 
Ni 
Ph 
Pli 
Ph 
Al 
Bi 
Co 
Ur 
Ph 
Au 
Sn 
Ca 
CI 
Cd? 
Ca 
Au 
Bi 
0 
Au 
0 
Wo 
H 
0 
H 
Ti 
C 
H 
C 
C 
Ur 
Au? 
Ca? 
Se? 
0 
H 
C 
Total 23 
2i 
23 
29 
By uniting into one single alphabetical series all the elements of the four 
systems of veins, we obtain the following table, in regard to which are also 
shown the elements which are wanting. 
Elements. 
Found. 
Aluminium. Magnesium. 
Antimony. Manganese. 
Arsenic. Nickel. 
Barium. Oxygen. 
Bismuth. Phosphorus. 
Carbon. Selenium. 
Not Found. 
Boron. Palladium. 
Bromine. Platinum. 
Cerium. - Potassium. 
Clirome. Ruthenium. 
Didymium. Rhodium. 
Erbium. Sodium. 
