THE ROOTS OP GRAPE VINES. 179 



to prepare the site for the reception of the materials 

 in which the roots are to be inserted. 



In doing this, the following directions are to be ob- 

 served : 



1st. Assuming that a new vinery is about to be 

 erected, excavate the whole area of it to the depth of 

 three feet below the level of the surface, and carry the 

 soil entirely away. 



2d. Prepare the bottom for the reception of a floor 

 of brick- work, by making the surface of it quite smooth 

 and level. 



3d. Pave the whole area of the bottom with good 

 hard bricks, well jointed together, either with cement 

 or well-prepared mortar. 



4th. Then lay the foundations of the walls of the 

 vinery on this flooring of brick-work, and carry the 

 walls up hollow as high as the surface of the adjacent 

 soil, so that the materials about to be enclosed within 

 them shall be protected from the chilling effects ot the 

 soil outside, and from any sudden accession of water 

 that may at any time fall thereon. The walls may 

 then be continued solid up to their intended height, al- 

 though every house intended for the early forcing of 

 grapes ought to have all its exterior walls built hollow 

 from top to bottom. 



5th. As the floor of the vinery is to be laid with 

 bricks, the surface of which is to be an inch higher 

 than that of the surrounding soil, provision must be 

 made for the bearing of the sides and ends of such of 

 the paving-bricks as will come in contact with the 

 walls, by having a set-off in the brick-work of the sides 

 and ends of the walls of not less than an inch in 

 breadth. 



6th. Now, as a series of walls are to be run up par- 

 allel to the ends of the house for the flooring-bricks to 

 rest upon, the next step to be taken is to divide the area 



