THE GRAPE. 



Walz found in vine branches, 



We see that in all these analyses, except the first, 

 by Levi, and that by Walz (which we therefore 

 hesitate to accept), potash predominates considerably, 

 but we find also that soda exists in the vine, and 

 may therefore expect to find this alkali equally in the 

 grape juice. 



We find also lime in large quantities, and such 

 other constituents as are common to the plant, and 

 accumulate in larger or smaller proportions in the 

 fruit. The quantity of phosphoric acid is not incon- 

 siderable. 



Berthier* has given us an analysis of the ash of 

 the vine and its different parts, from which the great 

 difference between the ash of the wood and of the 



* Ann. de Ch. et de Phys. 3 Serie, torn, xxxiii. p. 249. 



