C. 12.] EXPLANATION OF THE PLATES. 24! 



In trellifing, iron-wire is a great im- 

 provement, efpecially when placed on the 

 roof, as in Fig. i. Plate III. It is not on- 

 ly more durable than wood, but is nearly 

 as cheap at firft, and is much lighter and 

 neater. It mould be well painted, to pre- 

 vent it from rufting. 



Hot-bed frames mould be made with 

 fcrew-bolts at the corners, in order that 

 they may be laid up when not at work, 

 which is a great prefervation to them. 

 They generally experience more decay by 

 being tofled about and expofed to the wea- 

 ther in Winter, than in all the time they 

 are at work in Spring and Summer. 



I fliall conclude this Chapter by obfer- 

 ving, that, where there is an extenfive va- 

 riety of hot-houfes, it is not only more 

 convenient, but alfo more elegant, to have 

 them ftanding in a range, than detached 

 from each other. In this, uniformity 

 ought to be fludied. For inftance, if there 

 is a green-houfe, place it in the centre ; and 

 the other forcing houfes in pairs, right and 

 left, correfponding with each other refpec- 

 tively. 



Although 



