RESULTS OF CHEMICAL INVESTIGATIONS 



305 



Analyses 



VIII. 



IX. 



X. 



XI. 



XII. 



XIII. 



XIV. 



XV. 



XVI. 



51.08 

 2.67 

 11,37 

 11.17 

 5.64 

 0.22 

 5.20 

 3.96 



61.36 



Undet. 



16.56 



3.44 



2.93 



Undet. 



4.56 



0.85 



61.40 

 0.79 

 16.59 

 2.13 

 3.05 

 0.13 

 6.17 

 2.73 

 0.02 



Trace? 

 3.83 

 1.34 



Trace. 

 1.70 

 0.20 



61.45 



2.80 

 15.07 

 4.46 

 1.18 

 None. 

 5.37 

 3.02 



4.00 ' 

 1.22 

 05 

 1.23 

 Trace. 

 0.29 



61.58 



0.49 



16.96 



1.75 



2.85 



Trace. 

 6.28 

 3.67 



. 0.03 



Trace. 

 3.94 

 1.28 



Trace. 

 1.30 

 0.22 



43.80 



Undet. 



16.08 



9.47 



10.50 



44.49 



Undet. 



16.37 



5.07 



5.50 



50.20 



15^43 



61.37 

 0.60 



15.41 

 3.15 



13.79 



3.89 

 0.47 



7.81 

 6.54 



7 94 

 7.50 



5.47 

 8.62 



4.42 

 3.48 

 0.08 









Trace. 



f 5.54 

 I 1.50 



6.86 

 1.30 



1.96 

 0.34 



2.59 

 0.56 



4.75 



3.76 

 0.34 







1.50 



1.55 



3.99 



4.99 



1.74 



2.99 

 0.08 















0.39 



Trace. 



None. 

 0.02 





0.08 



5.38 















100.24 



99.41 















100.10 



100.14 



100.35 



100.57 



100.39 



100.00 



100.04 



X. Andesite, Edmund's Hill, Aroostook county, Maine. Analysis by W. F. 

 Hillebrand. Herbert E. Gregory, American Journal of Science, 1899, volume viii, 

 page 365. 



XI. Pyroxene andesite, Agate greek, Yellowstone National park. Analysis by 

 Whitfield, Bulletin 168, U. S. Geological Survey, 1900, page 108. 



XII. Hornblende andesite, mount Shasta, California. Analysis by H. N. Stokes, 

 Bulletin 168, U. S. Geological Survey, 1900, page 176. 



XIII. Dark massive greenstone, Lower Quinnesec falls, Michigan. Analysis 

 by R. B. Riggs. G. H. Williams, Bulletin 62, U. S. Geological Survey, 1890, 

 page 91. 



XIV. Dark schistose greenstone, forming a band in XIII. Analysis by R. B. 

 Riggs. G. H. Williams, Bulletin 62, U. S. Geological Survey, 1890, page 91. 



XV. Greenstone, summit of ridge at Cliff mine. Quoted by A. C. Lane, Geo- 

 logical Report on Isle Royale, Michigan, Geological Survey of Michigan, 1893-1897, 

 volume vi, page 215. 



XVI. Meta andesite, 1.5 miles northward from Jenny Lind. Analysis by W. F. 

 Hillebrand. Bulletin 168, U. S. Geological Survey, 1900, page 203. 



