ROOTS OF GRAPE VINES, 173 



will be the same as if planted against a straight wall. 

 The circular surface of a column of these dimensions 

 will contain 45 superficial feet ; a few years therefore 

 after its erection, the vine will annually yield 501b, 

 weight of gra}:)es. The whole cost of erecting one, 

 including the enclosed materials, will be about 255. 



Columns may be erected of a larger or smaller size 

 than that here described ; but if the diameter be much 

 less than three feet, the shape must be that of a polygon 

 of many sides, if built with bricks of the usual shape, 

 on account of their ends being rectangular. 



A column may be erected on any spare or conve- 

 nient spot, either contiguous to a dwelling or in a 

 garden; and by putting up a couple at opposite or 

 corresponding points, or a greater number sufficient to 

 form a harmonious combination, a highly ornamental 

 appearance may thereby be created. The simple con- 

 trivance of chambering the roots inside, and the pro- 

 vision of the sunken water-table at the top of the 

 column outside, prevent the necessity of the slightest 

 trouble being required in the management of the vine, 

 beyond that of the ordinary routine of pruning and 

 training, while at the same time, the vine is placed in 

 such superior conditions with reference to its roots, 

 that fine well ripened grapes may always be depended 

 upon. 



On the whole, therefore, it may be said that this 

 entirely new method of growing grapes on the surface 

 of hollow brick erections, which has now been 

 brought under notice, and fully explained, presents so 

 many advantageous features, and is withal of such 

 easy practical application, that a vast number of per- 

 sons, who have not hitherto possessed the means of 

 cultivating even a single vine, may now, at a trifling 

 expense, enjoy the very great luxury of having at 

 every returning season, an ample supply of delicious 

 and fine-flavored grapes. 



15* 



