28 A NATURALIST IN THE PACIFIC CHAP. 



A. Analysis by Dr. C. T. Jackson of Boston, U.S., of the water 



obtained in 1840 by the Wilkes Exploring Expedition^ 



Specific Gravity 1*0097. Temperature 57 F. 



The evaporation of a quantity equal to 1000 grains of distilled water gave 

 7*2 grains of salt, thus composed : 



Chlorine 3'577 



Sodium r665 or Soda 2-238. 



Magnesia 0-440 



Lime 0*366 



Silica and iron with a trace of phosphate 



of lime o"2oo 



Carbonic acid o'493 



6741 

 Organic matter and loss 0-459 



7*200 



B. Analysis by Dr. Oscar Pieper of Hamburg of the water 



obtained by Mr. Kleinschmidt in May, 1 8/6. 2 



The report stated that the water was clear, neutral in reaction 

 and salt-bitter in taste, brown flakes of hydrated iron oxide occur- 

 ring in it after long standing. The dissolved salts amounted to 

 " 8*48 g. per litre," and the remark is made that " the concentration 

 is therefore not so great as in sea- water." The solid constituents 

 consisted in by far the g^atest part of Natrium and Calcium 

 chlorides. A quantitative oetermination, which on account of the 

 small quantity of the water was confined to " eine Chlor und Kalk- 

 bestimmung," gave this result : 



Chlor (Chlorine) 479 g. per litre. 



Kalk(Lime) 2*31 



Reckoned as Chlornatrium (Kocksalz) and Chlorcalcium, these 

 results were obtained : 



Chlorcalcium (Calcium chloride) 4*55 g"- per litre. 



Chlornatrium (Sodium chloride) 3*09 



Amongst other constituents found in small quantities were 

 Sulphuric acid, Silicic acid (Kieselsaure), Potash, and Iron oxide. 

 Iodine, Bromine, Nitrates, and Borates were completely wanting. 

 " If this water," says Dr. Pieper, " has healing properties, it does not 

 owe them to its chemical composition." 



1 Narrative of the United States Exploring Expedition, III., 199, by 

 Commodore Wilkes. See also Dana's Geology of the same expedition. 



2 Journal des Museum Godejfroy, heft 14, Hamburg, 1879. 



