The American Geologist, Vol. XXXIII. 
Plate XXVII. 
Fig. 9. Thin Section of Syenyte-Monzonyte as seen under a 
microscope between crossed nicols >; 35 (Rossland 27). 
Fig. 10. Thin Section of Syenyte-Porphyry as seen xindor a 
microscope between crossed nicols X 35 (.Kossland 57). 
