4 FRUIT CULTURE UNDER GLASS. 



for summer growth ; but, for six months of the year, 

 they do not, from their position, embrace so much 

 direct sunshine as a lean-to house facing due south. 

 Moreover, from the greater amount of glass as a radi- 

 ating surface in span-roofed houses, they require more 

 fire-heat to keep up the temperature. In these respects 

 the lean-to gives advantages over the span-roofed pinery, 

 in whatever position the latter is placed. Tor starting 

 pines in December and the two following months, as 

 well as for swelling off fruit during winter and early 

 spring, I recommend lean-to houses, as represented by 

 fig. 2. 



Fig. 2. 



The dimensions of the two pineries represented by 

 the woodcuts, are 40 feet by 18 feet, which give a house 

 of handsome proportions. But as the extent of the 

 pineries must be guided entirely by the supply required, 

 I will not enter further into this question. Suffice it to 

 say, that it is more desirable to have several structures 

 of moderate size than a less number of larger ones. A 

 constant succession of ripe fruit is much more easily 

 kept up by having a number of compartments. 



