176 Scientific Intelligence. 



1#. Saline Impregnation of Bain. — After a severe storm on the 5th De- 

 cember 1822, Mr. Dal ton examined the rain that fell at Manchester, and 

 found that it contained 1 grain of salt, muriate of soda, in 10,000 grains 

 of water ; and as sea water contains 1 grain of salt in 25 of water, 

 there must have been 1 grain of sea water in every 400 grains of rain 

 water. This storm was from the S.W. to the W. The S.W. wind 

 comes from the coast of AVales, distant 100 miles, and the W. wind 

 from off Liverpool, distant from 30 to 40 miles. In subsequent storms, 

 Mr. Dalton found that there was 1 grain of salt water in 200 grains of 

 rain water, and that the salt water had been brought mechanically by 

 the wind at least 30 miles. — Manchester Memoirs, New Series, vol. iv. 

 p. 330, 370. 



II. CHEMISTKY. 



20. Analysis of the Root of the Male Fern. — As the root of the Poly- 

 podium filex mas has been almost universally used as a worm medicine, 

 M. Morin has submitted it to a careful analysis. It was found to con- 

 sist of, 1. Volatile oil ; 2. A fat matter, composed of elaine and stearine ; 

 3. The gallic and acetic acids ; 4. Uncrystallizable sugar ; 5. Tannin ; 

 6. Soap; 7. A gelatinous matter, insoluble in water and in alcohol. It 

 contains also the sub-carbonate, sulphate, and hydro-chlorate of potash, 

 carbonate and phosphate of lime, alumine, silex, and oxide of iron. 

 Journ. de Pharm. May 1824, p. 230. 



21. M. Berzelius' Analysis of 1000 parts of Carlsbad Water. 

 Sulphate of soda, 2.58713 Carbonate of magnesia, 0.17834 

 Carbonate of soda, 1.26237 Subphosphate of alumina, 0.00032 

 Chloride of sodium, 1,03852 Carbonate of iron, 0.00362 

 Carbonate of lime, 0.30860 Carbonate of manganese, 0.00084 

 Filiate of lime, 0.00320 Silica, - ~ 0.07515 



Phosphate of lime, 0.00022 



Carbonate of strontian, 0.00096 5.45927 



22. Analysis of Chrysoberyl. — Mr. H. Seybert of Philadelphia has pub- 

 lished the following analyses of the Chrysoberyl, 1, from Haddam in 

 Connecticut, and 2, from Brazil, in which hitherto the presence of 

 Glucina had escaped the notice of Klaproth, Thomson, and Arfvedson. 

 The proportions in the third column are those which Mr. Seybert con- 

 siders as the true mixture of the species, and the fourth contains the 

 oxygen of each substance. 



