592 day and shepherd water and volcanic activity 



Preliminary Analysis of one Tube of Gas in Honolulu 



For this reason some importance attaches to a preliminary and very 

 hasty analysis of the contents of one of the tubes (number 3) made but 

 four days after the collection, for which the College of Hawaii most 

 courteously extended the facilities of its chemical laboratory at Honolulu. 

 This preliminary analysis was undertaken solely as a precaution against 

 the consequences of a possible total loss of the material collected through 

 accidents of transportation. 



Owing to the limited facilities, it was not possible to make a complete 

 analysis; but in tube number 3, shaking with water reduced the total 

 volume of gas by 51.6 per cent, which may fairly be assumed to represent 

 the S0 2 in this particular tube. As there was a quantity of the con- 

 densed volcano water in the tube already, this merely reveals the quantity 

 of S0 2 in excess of the quantity already taken up by this water. The 

 carbon dioxide of this tube amounted to 39.8 per cent, but was probably 

 contaminated with some S0 2 . The CO amounted to 5.5 per cent. The 

 hydrogen and nitrogen could not be determined, but there was not enough 

 hydrogen in the residual gas to form an explosive mixture when mixed 

 1 : 1 with air. The water in this tube gave a very slight turbidity with 

 acid silver nitrate and a slight precipitate of S0 3 . This latter represents 

 the. amount formed, in the tube in the time which elapsed between the 

 collection and analysis (four days). This tube gave no test for titanium. 



Hydrocarbons could not be detected in any of the tubes. 



The Material Presext in the Water 



The water which was collected in the first tubes of the series may fairly 

 be assumed to contain practically all of the halogens. The analysis of 

 this water is given in table 3. 



Table 3 

 Analyses of Material contained in the Water collected in the Tubes 



Tube 1 



Na 2 0.0214 granit 



K 2 0.0102 



CaO 0.0120 



Fe 2 3 | 

 Al a O, } 



0.080 



CI 0.220 



F 0.565 



XH 3 0.0018 



Ti0 2 0.005 (?) 



Total Sas SO, 0.480 



Tube 



2 



0.031 grams 



0.011 



" 



0.14 



" 



0.010 





0.206 



<< 



0.492 



" 



none 



" 



none 



M 



0.508 



«< 



The major portion of 

 these may have come 

 from the glass or from 

 Pele's hair. 



