348 ON THE CONSTRUCTION OF A HOT-HOUSE. 



Jingle of the glazed roof. The pitch of the roof is 

 usually varied to agree with the design of the house, 

 and the size of the plants to be grown therein. Where 

 pleasure and ornament are the principal objects, the 

 angle should be about 43, but a few degrees of in- 

 clination either way is of minor importance, the height 

 and elevation being regulated by the size of the plants 

 intended to be cultivated. It is not advisable to shingle 

 any part of the roof on the south aspect. 



Materials for glazed frames. Carolina pine is the 

 best material for the wood work, as it is not so subject 

 to decay from moisture and heat as the other kinds of 

 pine wood. The frames or sashes can be of any con- 

 venient length, not exceeding ten feet, and about three 

 and a half or four feet wide, divided so as they can be 

 glazed with glass six inches wide. 



Of glazing. The pieces of glass should not exceed 

 six inches by ten, the lappings about one quarter of an 

 inch. The frames ought to have one coat of paint 

 previous to glazing, and all under the glass puttied. 

 Some prefer the lappings to be puttied also. It is our 

 opinion that in a Hot-house these should not be puttied, 

 but in the Green-house the closer they can be made 

 the better. 



Of Shutters. These should be made of half inch 

 white pine, and bound on both ends and sides, having 

 a cross piece in the middle of the same. They ought 

 to be painted once in three years. 



