448 
Where R = Ca, Fe, Mn, 
and R/=Fe, A1 
Ca 3 Si 2 +€* Si, Uwarrowite 
(od) 
(Mn, Fe) 3 Si 2 + He Si + Am S, 
Mn 0, Helvin (o) 
Ha Cl + 3 Ha Si -}- 3 al Si, 
Sodaltite, (c d) 
(Hi H + 2H H 3 ) + aq (o c) 
(Ha Ca + 8Zn C) + 8aq (o) 
(3Ha4+€*£ 3 ) + 9aq 
Fe 3 As + He 3 As 2 + 18aq (c) 
Ha W + W W (c) 
Ha Ac + 2 & Ac (o) 
C 12 (H 6 Cl) H 
C 12 (H 6 Br) H (o) 
C 20 H 16 O 2 , Camphor (o) 
Substances whose formulae are 
undetermined : — 
Hauyne, or Lapis Lazuli, a 
siiicate of Alumina, Soda, 
and Lime (o c d) 
Pyrochlore, Titanium ore (o cd) 
Tritonite, Silicate of oxides of 
Cerium and Lanthanium (c) 
Yoltaite, Hydrous sulphate of 
iron, &c. (o c d) 
* * A discussion* followed, in which C. Brooke, Esq, F.R.S, Professor 
Morris, the Honorary Secretary, and the Chairman took part ; after 
which — 
The Meeting was adjourned. 
* This discussion having been of a very general character, it has not been 
found necessary to insert it. 
ViricTT- X iv 
at. 
