SALTNESS OF THE SKA. 
21 
rpi 
Wat 6 Sa ^ cou ^ a * lied ’ u sea water gives it a greater density tlian fresh 
lts average specific weight is 1-027. The density of the 
« ot the Mediterranean is, according to M. Usiglio, 1-025 when 
var * 6 em P eia ^ me seventy degrees. But the saltness of the sea 
stan Vei '^ mUC under the influence of a great many local circum- 
wJ\, a r S " bkk we must count principally currents, winds 
' Tf i ab e , to eva P° r ation, rivers coming from the continents, &c. 
than ,tl v remarked that the S6a is lesa salt towards the Poles 
dist-mVn r qT 1 Ult ° 1 r ’ tkat tlie saltn es8 increases, in general, with the 
seas sun! "’’o ^ ^ of the water; that the interior 
mlu-a and H Y v ‘ ltl ^ theBladc Sea - the White Sea, the Sea of Mar- 
ranean is a ?’ T ^ Salt than the ocean ‘ The Mttditer - 
than the ^ is ’ “ ™ ha ™ seen, salter 
qu?nt tv 0 rZh TblSd,ffe “ * eX >“ ^ fact that the 
int ° U by rivCrS " th - that lost 
time E its wl J e T eaU a mU8t 8™ salter with 
cur^w^ wo^i^ tbe . 0Cean * a counter 
hy the Straits of Gibraltar CUmm comin 8 from the Atlantic 
:& - “■ S 
Blri° sl“ ° f A ™ “ d 4118 Ca8pkn &a “ sli “ I* »lt than the 
inalftrtawLt:” ‘ be te ‘“ i ' e “ mp ” li0 " ° f 1118 ™<« 
In loo Oallons of Water. 
Chloride of sodium 
Chloride of potassium . 
Chloride of magnesium 
Sulphate of magnesia . 
Sulphate of lime . 
Bicarbonate of magnesia 
Bicarbonate of lime . 
Bromide of magnesium 
Black Sea. 
Density, 
1*013, 
Sea of Azov. 
Density, 
1 009, 
14-0195 
9-6583 
91892 
0-1279 
1-3045 
0-8870 
1-4704 
0-7642 
0-1047 
0-2879 
0-2086 
0-1286 
0 - 364 G 
0-0221 
0-0052 
0-0035 
17-6663 
1 1-8795 
Caspian Spa 
density, 
1-005. 
3-6731 
0-0761 
0 - 6324 
1 - 2389 
0-4903 
0-0129 
0-1705 
traces 
