14 EINAR LONNBERG, MAMMALS COLLECTED BY 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 1,1 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 411,0. 
" Chlor, as Cl, was = 1,66 
Sulphuric acid, as SO; was = 22,61 
Lime, as CaO, was SS 
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: 
CaSO, on «4klie of ote Ota 
MeSOpm of) coor). cob i.nhiien 
Kei@p iz viint ior anw how ee 
NaS@Oye- tote ose qlt bee Beiee 
* This smell was not apparent at the time of the bottling. E. L. 
