TRIASSIC DEPOSITS AT EMBOROUGH. 
117 
(band d) made by Mr. J. T. Norman for the proprietors, gave 
the following result: — 
Insoluble silica 6-30 
Soluble silica 44-00 
Iron oxide ........ 2'85 
Alumina 32-75 
Lime . 4-50 
Magnesia 1-10 
SO2, HCl, P2O3, alkalies and water . . . 8-50 
100-00 
