in the Waters of the Ocean. 5 



had fallen, but the rainy season was not considered to have 

 set in. Latitude 0° 15' north, longitude 9° 33' east." 



This water afforded no traces of sulphuretted hydrogen. 

 The sediment in the bottle weighed 0*2 grain. 



Chlorine 1130-75 grs. 



Sulphuric acid 12008 



Lime 23-05 



Magnesia 43'58 



Magnesium 35'41 



Sodium 683-00 



Potassium a trace 



2035-87 



Amount of salts from evaporation . 2060 

 Specific gravity, 1023. 

 6. " Water from Cape Lopez Bay, taken by Her Majesty's 

 brig Nautilus, September 28th, 1839, when the Cape bore 

 W. by N. about ten miles. The rainy season had com- 

 menced." 



This water smelt very strongly of sulphuretted hydrogen. 

 The sediment in the bottle weighed only 0-1 grain, and con- 

 sisted of vegetable matter. It contained, per gallon, 



Sulphuretted hydrogen ..... 11 -69 cub. in. 



Chlorine 1467*37 grs. 



Sulphuric acid 115-20 



Lime 23-21 



Magnesia 41-02 



Magnesium 28-44 



Sodium 921-60 



Potassium a trace 



Iodine a trace 



2596-84 



Amount of salts from evaporation . 2576*00 

 Specific gravity, 1026. 

 7. " River Congo, — water taken off' Shark's Point, at the 

 entrance of the river, by Her Majesty's sloop Wolverine, on the 

 1 1 th of November, 1 839, four days before the customary rains, 

 but light rains having already taken place." 



This water smelt very slightly of sulphuretted hydrogen. 

 The sediment in the bottle weighed 0*4 grain, and consisted 

 of vegetable matter. It contained, per gallon, 



