22 



THE GREEN-HOUSE AND CONSERVATORY. 



The heating apparatus should run under the shelf along 

 the sides, and may be hot water, or, what is the simplest, 

 though perhaps the most expensive, from the waste of heat, 

 the old brick flue. 



A house of this kind would present somewhat this 

 appearance. 



Now, if a span-roofed house is too expensive, or we wish 

 something simpler, let us see how easy it is to build a 

 "lean-to" on the same plan. 



We have only to take one half of the span roof. Let 

 us build our back wall of brick, good nine-inch work, with 

 a suitable cap ; and with a coat of paint given now and 

 then, our green-house will last, without repairing, for many 

 years. 



A " lean-to " house, built after this plan, would present 

 somewhat the appearance of Figure A. 



The cost would not be far from five hundred dollars. 



