32 



How TO Grow Cut Flowers. 



within about half an inch of the top. After putting 

 together several joints in this way, finish with cemen- 

 in the same way as you would if you were using rec 

 lead, and you will have a much cheaper joint, and on( 

 that will be as durable as any, providing care is taker 

 to use nothing bvit the best Portland cement 



It will be «bvious to any builder, that the rests shoulc 

 be in position and the pipe all laid before the benches 

 are erected. The number of pipes necessary will depenc 

 of course on the location. Seven is none too many 

 and eight for all localities north of the fortieth parallel 



Fig. 19. 



the house being eighteen or twenty feet in width. Th( 

 first cost is a little more, but it insures fully again si 

 great falls in temperature to which all sections an 

 liable, and while five pipes will do the work in ordinary 

 weather, there are a few days in nearly every seasor 



