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XLVIII. An Account of the Pitmaston White Cluster Grape ; 

 with some Observations on the Training of Vines on an 

 open wall. In a Letter to the Secretary. By John 

 Williams, Esq. Corresponding Member of the Horticul- 

 tural Society. 



Read, December 15, 1818. 



Dear Sir, 



JTh e Pitmaston White Cluster Grape, which I sent you last 

 month, and which you say was thought deserving of notice 

 in the Transactions of the. Horticultural Society, was raised 

 by me from a seed of the Auverna, or Small Black Cluster (not 

 the Miller) Grape. It has been in bearing, about five or six 

 years, on the open wall ; it produces rather a larger bunch, 

 and ripens earlier than its parent. The berry is of a round 

 shape, a little flattened at the point opposite to the stalk, and 

 when perfectly ripe becomes of an amber colour, bronzed 

 with russet on the side next the sun. As it ripens earlier 

 than the old Dutch Sweetwater, and as the berries do not 

 crack, I think it will succeed well for early forcing under 

 glass. The leaf of this vine is thin, has little pubescence, 

 its colour is a fine dark green, in the early part of the sum- 

 mer, and it dies off an uniform yellow, in the autumn. 



The Pitmaston White Cluster is a great bearer, and sets its 

 fruit well, unless cold rainy weather happens when it is in 

 blossom ; but, like the Miller and Black Cluster, it unfortu- 

 nately forms a close bunch, with the berries much crowded ; 



vol. nr. L 1 



