WIDE GREENHOUSE AND HOSE HOUbE. 



95 



three-quarter span ; that is, having an angle of about 

 thirty-two degrees to the horizon to the south, and an 

 angle of thirty-six or thirty-eight degrees to the north, 

 as shown by figure 25, which is oa the same scale. 



For the same reason (the necessity of sunlight in win- 

 ter), the woodwork should be made as light as possible 

 consistent with strength, and for this purpose I prefer to 

 use well-seasoned yellow pine, as it has more strength, in 



Fig. 24. ROSE HOUSE, END SECTION. (Scale Ve of an inch to the foot.) 



proportion to bulk, than white pine. It is also necessary 

 to use glass not less than ten by twelve inches, put in the 

 twelve-inch way. Many now use twelve by sixteen inches, 

 put in the twelve-inch way. This style of greenhouse is 

 now preferred for forcing Lettuce, Strawberries, and other 

 fruits and vegetables in winter, as well as flowering plants, 

 as they, too, require all the light that it is possible to ob- 

 tain. 



Although this style of greenhouse would also shade, if 

 joined together on the ridge and furrow plan, when built 

 on level ground, yet, whenever a convenient location can 

 be had, where the ground slopes to the south at an angle 

 of ten or fifteen degrees, they may be joined together, as 



