16 



No. 



CaC0 3 



CaSOj MgSO, MgCl 2 KC1 



Xall 



co. 



NaCl 



Sum. 



Salt- 

 gehalt, 



OÆ020 b.1423 O.2083 O.3581 0.0755 0.0175 2.691 3.49 3.49 



28 0.0021 11.13Xwo.20740.3558 0.07160.0157 2.670 3.46 3.49 



29 0.0021 o.i396"o.2049 0.3645 0.0781 0.0165 2.678 3.48 3.51 

 36 0.00240.13700.2091 0.3509 0.07640.0164 2.694 3-4Q 3-51 



50 0.00160. 1 399 0.26*56 0.3515 0.0720 



0.0170 2.678 3.46 3.47 



Som Følge nf den høiere Svovlsyregehalt, Forchham- 

 fiader i Søvandet. bliver hans Tal for Klornatrium ogsaa 

 naget forøget. 1 Vandprøver af samme- Egen vægt og Salt 

 gehalt, som de af mig undersøgte. erholder han som Mid- 

 deltal 2.75 pCt. Klornatrium. 



* 

 Elter Tabel III har det nordlige Ishav gjennemsnit- 

 lig en specifisk Vægt af 1.0265. og 100 Dele af Våndet 

 indeholder: 



OaO MgO k\o Cl S0 3 



0.0578 0.2203 0.0472 .1.932 0.2214. 



Som Middeltal for de i Havet forekommende Salte er- 

 holdes ifølge den sidste Tabel: 

 CaC0 3 CaSO-4 MgS0 4 MgClå KOI NaHC0 3 

 0.01)2 0.1395 0.2071 0.3561. 0.0747 0.0166 



100 Dele af det faste Søsalt indeholder altsaa 

 Ca CO, OaS0 4 MgS0 4 MgCl 2 K('l Na CO, 

 0.057 4.oo 5.93 L0.20 2.14' 0.475 



No. Ca CO, 



NaCl 

 2.682 



Na Cl 

 76.84. 



Til Slutning vil jeg udtaje min hjerteligste Tak til 

 Hr. Professor Waage for den Hjælp. han paa tiere Steder 

 i mine Qndersøgélser har ydet mig. 



Kristiania, den lade Februar 1880. 



CaSo, MgSO, MgCl« KC1 



NaH 



CO, 



Prep. 

 NaCl Total. of 

 Salt. 



21jO.OO20jO.14230.20830.3581O.0755jO.Oi75 2.691 3.49 3.49 



28 0.0021 o.i38q ; o. 2074 0.3558,0.07 160.0157 2.670 3.46 1 3.49 



2go'.oo2i 0.13960.20490.3645 0.0781 0.0165 2.678 3.48 3.51 



360.00240.13700.2091 0.35090.07640.0164 2. 6Q4 3.49 3.51 



500.0016 0.1399 0.2056 0.3515 0.0720 0.0170 2.678 3.46 3.47 



By reason of the greater proportion of sulphuric acid 

 Forchhammer found in séa-water, his figures for chloride 

 of sodium are neccessarily somewhat higher. In samples 

 of water with precisely the same amount of salt as those 

 examined by myself. he determined the mean proportion 

 of chloride of sodium to be 2.75 per cent. 



According to Table III. the specific gravity of the 

 Norwegian Sea is 1.0265; and JOD parts of the water 

 contain — 



CaO MgO K 4 Cl S0 3 



0.0577 0.2203 0.0472* 1.932 0.2214. 



The mean valnes, as computed by the last Table. for 

 the salts occurring in dcenn-water. are as follows: - 

 Ca (.'(>, Ca SO, MgSO, MgCl, KC1 NaHCO, NC1 

 0.002 0.1395 0.2071 0.3561 0.0747 0.0166 2.682. 



Hence, loo parts of dry sea-salt contain — 

 Ca CO, Ca SO, MgSO., MgCl, KC1 NaCO, NaCl 

 0.057 4.011 5.93 10.20 2.14 0.475' 76.84. 



In conclusion. I heg to feturn Professor Waage my 

 most sincere thanks for the assistance he kindly rendered 

 me when instituting the ohservations recorded in this 

 Membir. 



Christiania, Fehr. 14//* 1880. 



