596 CYRUS F. TOLMAN 
(Clg Ma oieid omen. aes 5= 202% 
(Br) eee ee eenTtes 
(SO,) - - - 7.692 
(COs) ia - - - .207 
(Na) ere Maggie cy 30-503 
(K) As) aiiea la aa Tl 
(Mg) a meat 3.725 
(Cay ene igs ene Tao, 
99-999 
While the average constitution of the salts remains a constant, 
the salinity of the ocean is variable. Averaging 327 analyses, 
it is found that the average amount of salt is 34.7 grams per 
kilogram sea water, or taking the average specific gravity of the 
ocean as 1.026, about 35.6 grams per liter. 
Applying this to the second table, we find that the total 
number of grams of the different ions per liter is as follows: 
(C1) - - - - 19.68 
(Br) - - - - = 0:07, 
(SO,) - - : - 2.74 
(CO3) - - - - 0.08 
(Na) - - - - 10.89 
(K) - - - - =) 10:4 
VI Soren Meira oi 1.33 
(Ca) - - - - = 0243 
35-69 
Dividing by the equivalent weights, Dividing the relative strength of the 
we find the relative strength of the ions bivelant ions by 2, we find the relative 
per liter to be as follows, where the nor- number of ions. 
mal solution (one which contains as many 
grams per liter as the equivalent weight 
of the substance) is taken as unity. 
Relative strength per liter Relative No. of ions 
(Nee OSS > NG .Colk (Nees Ge. Bebo 
(Br) 7 = - 0.0009 ‘“ (Br) i . 2 9 
(On v= - OORT? (SO,) : is 285 
(CO; = = OLOO27 ean (CO3) if i cf 13 
(Na) : ; 0.47 mY (Na) - - - 4700 
(IQ) 2 ee LOTR mas (K) aot en SC. 
(Mg) z : Osan « (Mg) - 3 e 560 
«€a)i = - = O1O22) Ms (Ca) - - =e LO 
