CONSTRUCTION OF FRUIT HOUSES 



297 



sash extending continuously from end to end each side of the ridge, and, of 

 course, the bottom ventilation, as in the lean-to, each side. A large structure 

 like this should have 

 upright pillars sup- 

 porting the ridge, as 

 the width is really 

 too much to do with- 

 out, unless very heavy 

 bracing is adopted, 

 and this is objection- 

 able as causing ob- 

 struction to the light. 

 A 30 feet wide 

 vinery, even for late 

 use, should not have 

 less than four rows 

 of 4-inch pipes each 

 side. It must be 

 remembered that, in 

 proportion to its cubic 

 capacity, a span-house is much more difficult to heat than a lean-to — there is 



not the great shelter of 



F'g- 3 

 span 



Fig. 3.— Span-Roof Vinerv 

 (In Section) 



the back wall 

 is a section of a 

 vinery. 

 Peach 



House. — In 

 the cultivation of peaches 

 and nectarines under 

 glass, the structures very 

 much resemble the vinery, 

 but generally less width 

 and a steeper pitch are 

 desirable. A fair width 

 for a peach-house is 12 

 to 15 feet with a pitch 

 of about 40 degs. The 

 mode of construction and 

 ventilating arrangements 

 already described should 

 be applied, but the wire 

 trellising must be quite 

 different. Whiletheback 

 wall of a vinery is of 

 very little use for produc- 

 ing'grapes, the back wall of the peach-house, at least the upper portion of it, is of 

 great importance for the growing of peaches. In order that the full use of this 



Fig. 4.— Lean-to Peach-House 

 (In Section) 



