and the Mudlumps of the Mississippi. 



^K'<]j^a:.^"- tt^:^ 



^T|„r 



Chloride of sodium,... 

 II potassium, . 



Sulphate of calcium,:. 



0-00630 



12-950 



i::: 



1-640 



I/""' 



B^of magnesium, 



O-O030O 



4-920 



,.a35 iTn 



'iTso 





'' ' °^ ' "mZuZ^m, 



0-01120 



12 450 







0-003! 0086 



Silica, 



0-00130 



2-130 









Specific gravity,.. 



006100 



l^^O 



1^0 1^0 



IT 



3.505U-000 



III. Water from faintly active ( 

 Northeast Pass ; from crater on ^ 



feet above sea-level. Collected Dec. 2, 1867. 



Water very salty, about | of the whole mass; the rest, a 

 somewhat sandy mud ; color, slightly yellowish ; turns turbid 

 rapidly on exposure to air. , 



The larger proportion of water in this specimen, as compared 

 with the preceding, doubtless results from the comparative in- 

 activity of the cone, as compared to that at the time of high 

 water in February. The same fact may account for some ot 

 the difference in composition. ^ „ 



IV. Water from East Crater on Marindin's Lump, Passe a 

 rOutre. See p. 362. Collected Dec. 2, 1867. . 



Forms about | of the bulk in the bottle, the rest is sott 

 clayey mud. Faintly brownish, clear ; becomes brownish tur- 



bid rapidly 



1 exposure t 



Water from West Crater on Marindm's Lump, Passe . 

 1 Outre; same date j t^ 



Water about \ of bulk in bottle, the rest clayey mud. JNo 

 very salty ; colorless, but turns turbid quickly on exposure i< 



W Clear, with a little E 



\7IL Water of the Gulf of Mexico, taken from suriace 30 



lailes out, southeast from Southwest Pass, Dec. 18b/. 



nallt • ^^^'""^^ composition of sea-water, according to Keg 



, The general results deducible from the above analyses may 



oe thus stated; 



