ROOTS OF GRAPE VINES. 161 



these spaces, rim up, successively, walls built in a 

 brick-oii-edge manner, the surfaces of the tops of 

 which must range evenly with each other, and also 

 with that of the solid wall already built. These 

 walls will be about 2^ inches thick, and will, there- 

 fore, afford a bearing for the ends of the flooring- 

 bricks of IJ inch. These walls, it must be observed, 

 are not to be built solid, but in what is called a 

 pigeon-holed manner, that is, with open spaces left at 

 regular distances in the brick-work. When these 

 brick-on-edge walls are finished, one compartment for 

 the reception of a single vine will be complete, as far 

 as the walls are concerned ; and all the remaining 

 area of the bottom of the house is to be occupied by 

 walls built up in the same manner, and enclosing a 

 similar space within each compartment. The solid 

 walls are for the purpose of keeping the roots of the 

 vines separate from each other, and the intermediate 

 walls have open spaces left in them, to permit the 

 roots to ramble freely throughout the entire mass of 

 materials deposited within each compartment. The 

 roots of each vine being thus kept separately, any 

 vine can be taken up, and removed, if circumstances 

 should at any time render it necessary, without dis- 

 turbing the roots of the other vmes. 



7th. The cross-walls being all finished, they had 

 better be left for the space of three or four days for 

 the brickwork to become dry and firmly set, after 

 which, the materials, being prepared in the manner 

 already mentioned, may be deposited in the spaces 

 betwixt the walls. 



They should be filled in by the hand, in moderate 

 quantities at a time, and placed carefully and com- 

 pactly together, clear up to the tops of the walls, so 

 that the under-sides of the flooring-bricks, when laid, 

 may be in close contact with them. 



8th. The materials being thus deposited, the floor 



may then be laid down ; and this is to be done with 



good hard bricks, of the very best description, and, 



with the exception about to be mentioned, jointed 



14^ 



