GREEN-HOUSE STRUCTURES. 49 



blundered. I have no reason to complain of success in 

 business, but I feel well assured that for the first ten 

 years of my time many thousands of dollars were sacri- 

 ficed in the blunders made in my endeavor to get on the 

 right track. 



There was no fixed system ; all was confusion, hardly 

 two of us building alike, and, in my humble opinion, most 

 of us building wrong. 



The style of green-house to be built must be governed 

 by the purpose for which it is wanted. If for the growing 

 of a general assortment of green-house or bedding plants, 

 four years' working of those on the ridge and furrow 

 system, on the extensive scale in use by us, makes us con- 

 fident in the belief that that system is all we have previ- 

 ously claimed for it, as being the most economical of 

 space, most economical of heat, and most economical in 

 cost of construction. 



Figure 12 represents the end section and ground plan 

 of the style of house referred to, which may be used 

 for the purpose of growing flowers for winter Roses, 

 green-house, or bedding plants, or anything requiring 

 protection in winter. The green-houses represented in 

 this plan are 100 feet in length, and each 11 feet wide 

 inside. The heating of the whole (that is, the three 

 measuring from the outside walls 36x100 feet) is done by 

 one of Hitching's Combination Boilers (C), heating about 

 1200 feet of 4-inch pipe (D). The glass roof (E) is 

 formed of portable sashes, each 6 feet by 3 feet ; each 

 alternate sash is screwed down, the others being movable, 

 so that a full supply of air can be given when necessary. 



The movable sash is elevated by an iron bar 15 inches 

 long, attached to the sash by a staple ; in this bar three 

 holes are punched, at distances of 3 inches ; by means of 

 these holes the bar can be hooked upon an iron pin placed 

 in the ridge pole, and thus hold the sash more or less 

 open, to graduate the admission of air. When the sas}i 

 3 



