410 Mr. J. A. Phillips on the Connexion of certain 



These results may be expressed as follows : — 



Grains Gramme 



per gallon. per litre. 



Calcium sulphate, .... .22-14 '3157 



Sodium chloride 14-- 70 -2096 



Potassium chloride 1*80 '0257 



„ arseniate .... trace trace 



Magnesium chloride .... trace trace 



Aluminium chloride .... trace trace 



Ferrous carbonate 2*90 *0414 



Silica _^70 '0100 



Total by addition of constituents . 42*24 '6024 



Total found directly 42'19 "6017 



Water from Botallack, No. 2. — This water was collected from 

 the 245 -fathom level, under the sea, in the "Crown Mine," 

 from the deepest part of the workings. The lode is enclosed in 

 a magnesian clay- slate, and chiefly consists of quartz spotted 

 with copper pyrites, arsenical pyrites, oxide of tin, galena, blende, 

 and calcite. 



The results obtained by analysis were as follows : — 



Specific gravity = 1*0105. 



Total so 



lid contents 100 



per gallon. 







Grains 



Grammes 





per gallon. 



per litre. 



Chlorine 



440-17 



6*2778 



Iodine .... 



trace 



trace 



Bromine . . . 



trace 



trace 



Sulphuric acid . , 



85-32 



1*2168 



Silica 



trace 



trace 



Alumina . . . 



•45 



•0064 



Lime 



140*02 



1-9970 



Magnesia . 



15-30 



•2182 



Iron .... 



0-70 



-0100 



Alkaline chlorides 



684*00 



9*7556 



Potassium . . 



9-76 



•1392 



Lithium 



■84 



•0119 



Sodium .... 



259*80 



3-7054 



Carbonic acid . 



155*05 



2-2114 



The foregoing results may be thus tabulated :- 



