72 GARDENING FOR PROFIT. 



results that have been such as to make their business a 

 complete success. Still, whenever it can be afforded, 

 there is no question that hot water or steam is the best 

 method of heating greenhouses. In the plan and section 

 on the preceding page, A is the shed enclosing the fur- 

 naces, G C, from which pass the flues, D, in the direc- 

 tion shown by the arrows to the chimneys, L. The 

 benches are not shown here, but they are arranged as in 

 figure 6. 



