362 Mr. Movie's Analysis of the Atmosphere 



Oxygen. 

 Average of two experiments with hydrogen from"! ..^ 



mercurial sample J 



Average of two experiments with nitrous gas from do. 14*77 



Mean . . . 14-76 



Carb. acid. 



Average of two experiments with potash solution . . . 0*23 



Average of two experiments with potash solution "I n#9q 



from mercurial sample J 



Mean . . . 0*23 

 A trace of both sulphuretted hydrogen and sulphurous acid 

 in both samples. 



Composition of sample:— 



Nitrogen .... 85*01 percent, 

 Oxygen .... 14*76 ... 

 Carbonic acid . . 0*23 ... 



100*00 

 Sample 7. One gallon. 

 Great Work. — Granite, tin and copper. 170 fathoms from 

 surface ; thirty fathoms from winse or shaft, with two men in a 

 core ; taken directly after firing a hole ; specific gravity *991. 



Oxygen. 



Average of four experiments with hydrogen 16*99 



Average of three experiments with nitrous gas . . . . 17*00 

 Average of three experiments with quadrisulphuretl ..„- 



of lime J 



Experiment with platina ball 17*00 



Mear. . . . 17*01 

 Carb. acid. 

 Average of three experiments with lime water .... 0*09 

 Average of two experiments with potass solution . . . 0*10 



Mean . . . 0*095 

 Composition of sample: — 



Nitrogen .... 82*895 per cent. 

 Oxygen . . . . . 17*010 

 Carbonic acid . . 0*095 



100*000 

 Sample 8. One gallon. 

 Great Work. — As before. 1 60 fathoms from surface ; two 

 men in a core ; thirty fathoms from winse or shaft ; fifteen 

 minutes after firing a hole ; specific gravity *992. 



