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AMERICAN HOMES AND GARDENS 



November, 1910 



things besides tennis courts. Roses are in many ways the growers are too rampageous to look well on such a place, 



best vines to grow on the back nets of the tennis court, The slow growing Enonymus might be the surest of all 



and a variety of the new climbers should be used. Dorothy if an evergreen vine is desirable. It has no noticeable 



Perkins with pink flowers is one of the best. Tausandschon, flower, but its leaves are small, which is an advantage, and 



Crested dogtail grass forms the lines of the tennis court 



Flower of Fairfield, Hiawatha, Lady Gay and Wedding 

 Bells are other good ones. 



Clematis can be used, too, and Akebio, but honeysuckles, 

 bittersweet, trumpet vine, moon flower and other vigorous 



it grows upright and compact. It needs very little training 

 and almost no pruning until it reaches the top and begins 

 to bend over. The color is excellent and changes very lit- 

 tle in the winter, remaining bright throughout the year. 



Conservatory and Greenhouse Heating 



By George E. Walsh 



jHE designing and construction of green- 

 houses and conservatories follow very 

 similar lines in all parts of the country, 

 and the essential points of difference arc 

 found chiefly in slight modifications to 

 suit local conditions. As built to-day the 

 greenhouse, and the conservatory in a 

 lesser degree, offer less resistance to the cold than any 

 other type of house, and the problem of heating them to a 

 proper temperature is correspondingly difl'icult. There must 

 be a great exposure of the house to the sun and winds, 

 and with only a protection of glass between, frost and cold 

 can easily get in. Moreover, the greenhouse or conserva- 

 tory must have a higher temperature than the living-house 

 for many plants, and the heat must be evenly distributed 

 throughout. At all times the heating apparatus must be 

 ready to respond quickly and promptly to any sudden 

 change in the weather, and if not able to do this the whole 

 season's work may be ruined in one night of cold. 



Much of course depends upon the plants that one in- 

 tends to raise in a greenhouse or conservatory, for some 



require much higher temperatures than others. Lettuce 

 and violets, for instance, can be raised most successfully in 

 a temperature of 45 to 50 degrees, and a greenhouse which 

 cannot be kept warm enough for cucumbers could be made 

 to do well with the two former. For general purposes a 

 greenhouse should be able to maintain a temperature of 

 55 to 70 degrees. Roses do the best in a temperature of 

 60 to 65 degrees; carnations, 50 to 55; chrysanthemums, 

 55 to 60; violets, 45 to 50; tomatoes, 55 to 60; radishes, 

 50 to 55; cucumbers, 65 to 70, and lettuce, 45 to 50 

 degrees. 



In order to raise flowers and vegetables which require a 

 very high temperature it is thus necessary to keep them in 

 sections of the building partitioned off so that the rest of 

 the place will not be overheated for the general run of 

 plants. Such a partitioned section can be utilized also in 

 forcing seeds which require high temperatures for their 

 best germinations. Otherwise, however, the heating of 

 either conservatory or greenhouse should be uniform so 

 that no part is overheated and others underheated. 



In order to heat a greenhouse properly it is necessary to 



