1814.] On the Sea Water on the Coasts of France. 201 



Nature presents us with a method in winter of separating the salt 

 from sea water ; namely, by freezing it. It is affirmed that the 

 brewers in Amsterdam employ sea water thus frozen, instead of 

 fresh water, in the manufacture of beer. We have seen pieces of 

 ice from sea water perfectly fresh. 



M. Rochon, Member of the Institute, has just pointed out a 

 method of procuring sea water free from any empyreuroatic taste by 

 distilling it in a vacuum.* The machine described by that philo- 

 sopher is extremely simple. All artists may easily execute it without 

 a model. 



The analysis of the water of different seas has been made by 

 different chemists. 



Bergman, from a kanne (IS9-91 cubic inches English) of sea 

 water taken up at the Canaries, obtained 



Muriate of soda 2 ounces 433 grains 



Muriate of magnesia 38 



Selenite 45 



Forty pounds of water from the English Channel, taken up at 

 Dieppe, and analysed by Lavoisier, gave for result — 



Grains. 



Lime and sulphate of lime 128 



Common salt 5072 



Glauber salt and Epsom salt 288 



Muriate of magnesia 5"JG 



Muriate of lime and magnesia 946' 



t 



010 



The water of the Baltic was analysed at different epochs by three 

 chemists. The result of these analyses varies remarkably : though 

 the water bad been always taken up nearly in the same latitude. 

 The water analysed by M. Link was taken up at Doberan, some 

 leairiK-s from Rostock.f 



M. Pfaff touk up the water which he examined at Travemunde, 

 near Lubeck. This philosopher found in it so great a proportion 

 of muriate of lime, that there is reason to suspect some mistake in 

 bis anal 



The last analysis of the waters of the Baltic was published by 

 Mr. Luhtenberg, of Dantziek. The water examined was taken up 

 BOOK league! from the mouth of the Vistula. The results of this 

 analysis approach our own analysis of the water of the English 



* Journal de Physique, Ixxvi. 373. 



t 1 1. re ea water balhi in this place. This excellent establishment attract! 



i .i peal uunbcf <>t Invalid!, who derive verj grow advantage from 

 I his will be evident in every one who consult! the Anuahof Dohc- 

 i.in, ..in., i bj Pro* '«, r Vogri, Physician tu the Duke of Mecklenburg, and 

 Dim 'mi <>t the Balhi. 



