655 

 PRIMARY CLASS. 



UNSTRATIFIED. 



Granite. 



STRATIFIED. 



Gneiss. Red sandstone. 



Micaceous schist. Argillaceous schist. 



Chlorite schist. Diallage rock. 



Talcose schist. Limestone. 



Hornblende schist. Serpentine. 



Aclinolite schist. Compact felspar. 

 Quartz rock. 



SECONDARY CLASS. 



STRATIFIED. 



Lowest (red) sandstone. Limestone. 



Superior sandstones. Shale. 



UNSTRATIFIED. 



Overlying(and venous) Pitchstone. 



rocks. 



OCCASIONAL ROCKS. 



Jasper. Gypsum. 



Siliceous schist. Conglomerate rocks. 



Chert. Veinstones. 



APPENDIX. 



Volcanic rocks. Alluvia. 



Clay, marie, sand. Lignite. 



Coal. Peat. 



END. 



Joseph Mallett, Printer. 59. Wardour Street. Soho, London. 



