302 



ON THE WATER OF THE IRISH SEA. 



Arranged in this manner, our determinations on the 

 water of the Irish Sea give the following proportions : — 





CI. 



SO3 



CaO. 



MgO. 



Total salts. 



Absolute 1 















amount 



Summer 



18735 



2-187 







34*082 



per looo 



Winter.. 



18-627 



2161 



0-575 



2*032 



33-838 



grms. ... 















Relative 



Summer 



100 



11*67 







181-91 



amount. 



■ Winter.. 



100 



11-63 



3-09 



io*93 



182-09 



We have not attempted to determine the amount and 

 nature of the gases dissolved in the water of the Irish Sea. 

 When compared with the amount dissolved in river-water, 

 the quantity of the gases contained in sea- water is exceed- 

 ingly small. It would be interesting to determine the 

 proportion contained in mixtures of fresh and sea-water 

 at the mouths of rivers. Taking Mr. Hunter^s researches 

 on the composition of the gases dissolved in normal sea- 

 water as the basis of the comparison"^, we should thus be 

 in a position to judge of the influence of the river-water in 

 this particular direction. 



* Journ. Chem. Soc. 



