Practical floriculture; a guide to the successful cultivation of florists' plants, for the amateur and professional florist . so that no infalliblerule can be applied. CHAPTER XI. GREEN-HOUSES ATTACHED TO DWELLINGS. Every now and then the inquiry is made : * How can Ibest attach a green-house to my dwelling? Nothing ismore simple, as far as the mere shell of the green-house isconcerned, but the difficulty is to heat it. Many may notknow that a green-house, even without any artificialmeans of heating, can be made very useful in the earlyspring months in this latitude, and in those SouthernState
Practical floriculture; a guide to the successful cultivation of florists' plants, for the amateur and professional florist . so that no infalliblerule can be applied. CHAPTER XI. GREEN-HOUSES ATTACHED TO DWELLINGS. Every now and then the inquiry is made : * How can Ibest attach a green-house to my dwelling? Nothing ismore simple, as far as the mere shell of the green-house isconcerned, but the difficulty is to heat it. Many may notknow that a green-house, even without any artificialmeans of heating, can be made very useful in the earlyspring months in this latitude, and in those SouthernStates where the thermometer does not fall lower than 20or S5°. It may be used all through the winter. GREENHOUSES ATTACHED TO I>WELLI:NGS. 67 In the diagram of an end section of n, simple house,figure 20, the sashes {B and G) are 3 feet wide by 6long ; the top one is so placed that it can be let downover the lower one by weights and pulleys, and thus secureventilation. The front wall and ends are best built byusing 4 X 6-inch locust or cedar posts. Upon the out-side of the posts rough planking is nailed; against that a. Fig, 20.—SECTION OF A CHEAP GREENHOUSE. layer of tarred paper; and against the tarred paper theweather boarding is nailed, either overlapping or tonguedand grooved, as may be desired. The outer walls of allgreen-houses built of wood are now thus made with us,and it is found to be far preferable to the old and objec-^tionable mode of filling in between the boards with saw-dust or shavings. The tarred paper is a good non-conductor, and we findwalls so constructed are equally as good a protectionagainst frost as a nine-inch brick wall, which would cost 68 PRACTICAL FLORICULTURE. twice as much. A ^reen-house of this kind, 25 feet lonsTby 11 wide, should not cost more than $100 complete,if plainly built; that is, without heating. Heating is adifficult matter in green-houses so attached to dwellings,unless in cases where there is a surplus heat at night fromfurnaces
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