750 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [2] 



1 have prepared eight solutions containing 35 grams per 1,000 of dis- 

 tilled water, of the fellowing substances : 



Solution No. 1 : Chloride of sodium i%^ 



Xo. 2 : Chloride of magnesium tf§o 



No. 3 : Sulphate of magnesia . . ^ ytoo 



No. 4 : Bromide of i)otassium toso^ 



No. 5 : loduret of potassium jiso 



No. 6 : Chloride of potassium two 



No. 7 : Sulphate of soda ril^ 



No. S : Sulphate of potash ..... j^^ 



Here we have eight solutions, each containing one of these natural 

 elements of the sea-water, in the proi)ortion in which it contains all of 

 them. The sulphate of soda alone does not belong, properly speaking, 

 to sea-water, although its elements are contained in it. 



Three other solutions have been prepared, in which all the elements 

 are found united,' but in which the quantitative preponderance which in 

 the water of the sea belongs to the sea-salt, is given (1) to chloride of 

 magnesium, (2) to chloride of potassium, (3) to sulphate of magnesia. 

 The following is the composition of these solutions : 



Solution No. 9 : 



Chloride of magnesium 27. 00 



Chloride of potassium ... • 0. 75 



Chloride of sodium 3. 70 



Sulphate of magnesia 2. 30 



Sulphate of lime 1. 50 



Bromide of potassium 0. 02 



Distilled water 1000. 00 



Solution No. 10 : 



Chloride of potassium 27. 00 



Chloride of magnesium 3. 70 



Chloride of sodium 0. 75 



Sulphate of magnesia 2. 30 



Sulphate of lime 1. 50 



Bromide of potassium 0. 02 



Distilled water 1000. 00 



Solution No. 11 : 



Sulphate of magnesia 27. 00 



Chloride of magnesium .... 3. 70 



Chloride of potassium 0. 75 



Chloride of sodium 2. 30 



Sulphate of lime 1. 50 



Bromide of potassium 0. 02 



Distilled water 1000. 00 



