THE GEAPE. 



17 



in the leaves are returned to the soil exhausts the 

 alkaline contents of the earth more than it is ex- 

 hausted by the removal of other plants. 



Crasso has given us* a more exact analysis of the 

 different constituents of the vine. 



We extract the following : 



1. Must from unripe purple grapes of the small Burgundy 



or black ^Clavners (Metzger). 



2. Must from ripe purple grapes, small Burgundy, or black 



Clavners (Metzger). 



3. Must from ditto, but from a different place. 



4. Must from ripe white grapes, Schonfeilners, or green Syl- 



vaners (Babo and Metzger). 



5. Purple skins from No. 1. 



6. White skins from No. 4. 



7. Stones from No. 1. 



8. Stones from No. 4 all in 100 parts. 



We find the wood of JSTo. 3 analysed in the second 

 column (p. 13), the first analysis. 



* Ann. de Ch. et de Pharm. Bd. 62, s. 59, u. Bd. 57, s.69. 



C 



