14 EINAR LONNBERG, MAMMALS COLLECTED BV THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 



could therefore not be carried out in such a manner as is usual at a complete ana- 

 lysis of water. 



The water showed a grey-coloured deposited sediment. A microscopical exa- 

 mination of this deposit did not reveal anything worth mentioning. The dried deposit 

 contained organic substance which was burnt; the quantity of organic substance was 

 8,1 mgm. corresponding to l,i pr. 100,000 parts of water. The inorganic part of the 

 sediment weighed 37 mgm. corresponding to 4,9 pr. 100,000 parts of water ; it contained 

 iron, lime, and magnesia, together with a small quantity of insoluble remains ; arsenic 

 was not found in it. 



The water had a rather strong smell of sulphuretted hydrogen,* and the fumes 

 blackened a lead acetate-paper. The specific weight of the water was 1,0318. Its 

 reaction on litmus was neutral. 



The qualitative analysis proved the presence of calcium, magnesium, sodium, 

 and potassium; further sulphuric acid, chlor, and carbonic acid; trying for boric acid 

 with turmeric paper gave a feeble reaction at a direct investigation of the water, and 

 after concentration of a sample of water boric acid could undoubtedly be stated to 

 be present in such a degree as to be worth mentioning. Nitrates and nitrites were 

 completely absent; even ammonia was absent or only present as a questionable trace. 

 The investigation proved further the absence of lithium, of phosphoric acid and — 

 as far as the investigation could be carried out with such a small quantity of water 

 — of metals with the exception of a trace of iron. 



The quantitative determination gave the following results estimated for 100,000 

 parts of water: 



The quantity of anhydrous salts after evaporation with carbonate of soda 

 was 344,7. 



The quantity of bases transformed to sulphates and after removing the silicic 

 acid as fluorsilicium amounted to 411,o. 



Chlor, as CI, was = ],56 



Sulphuric acid, as SO3 was = 22,6i 

 Lime, as CaO, was = 31,75 



Magnesia, as MgO, was = 27,9 



The chlorides of alkalines amounted to 203,9 of which chloride of potassium 

 was = 6,3. 



All these values for the bases calculated as sulphates give the following figures: 



CaS04 77,17 



MgS04 83,77 



K2 SO4 7,37 



Na2S04 • • • ■ • • ■ 238,80 



Total 407,11 



This smell was not apparent at the time of the bottling. E. L. 



