DETACHED GUEEXHOL'SES, ETC. 1(J5 



heater, just as would be necessary for an ordinary stove. 

 If the greenhouse is small enough to be heated by a 

 register from the furnace or steam boiler that heats the 

 dwelling, much of the cost may be saved, as it will be 

 seen that nearly half of the cost of construction is the 

 heating apparatus. Figure 52 shows a front elevation of 

 a conservatory suitable to attach to dwellings. It is six- 

 teen feet wide and thirty feet in length. Its ground plan, 

 showing the arrangement of the benches and walks, is 

 given in figure 53. Such a structure in every way com- 

 plete, heated with the Hitchings Base-burning Water- 

 heater, should not exceed one dollar and twenty-five cents 

 per foot of glass surface, or $600. 



Figure 54 shows a more elegant style of conservatory 

 attached to a dwelling. The size is sixteen by sixteen; 

 hight, twelve feet. The estimated cost complete, with 

 heating apparatus included, for every square foot of glass 

 surface covered, at four dollars per foot, would be $1,024. 

 If heated from the boiler or furnace used to heat the 

 dwelling, perhaps one-third less. This design is given 

 by Lord & Burnham, horticultural architects. 



CHAPTER XXVIII. 

 DETACHED GREENHOUSES, MODES OF HEATING, ETC. 



When more extended glass structures are desired they 

 must, of course, be detached from the dwelling or other 

 buildings ; and if shelter, ivithoiit sJiade, can be had 

 from hills, w^oods, or buildings from the north or north- 

 west, so much the better. When greenhouses, graperies, 

 rose houses, or other greenhouse structures are wanted 

 for forcing flowers or fruits m the winter months, they 

 should alwavs be built after what are called '^ three- 



