THE GREEN-HOUSE. 



219 



not done, then as a substitute let a large sponge be 

 used an hour after every watering, to suck up the 

 water which has run through into the saucers ; but 

 few servants can be trusted to attend to this. 



5th. We advise frequent watering over-head to 

 remove dust and dirt; and when this is not done 

 effectually by a shower from the rose of the water- 

 ing-pot held high above them, or from the free use 

 of Read's syringe, then we recommend washing each 

 plant leaf by leaf with a wet sponge. 



6th. We advise giving as much air as possible in 

 the day-time, and on account of the frequent water- 

 ings over-head that will become necessary, and also 

 to keep the plants in a fresh, verdant, and even grow- 

 ing and flowering state during winter, a rather higher 

 degree of heat at that season than we have recom- 

 mended for the villa green-house. 



7th. The construction of the green-house should 

 be such as to admit as much light as possible — more 

 so if practicable than the villa green-house, as the 

 light of cities is less pure. The plants should be set 

 nearer to the glass for the same reason ; and, what 

 is seldom necessary in the country at all, the glass 

 should be cleaned three or four times a year. In 

 correspondence with these directions, few creepers 

 are admissible in town green-houses. 



8tli. The plants should, if room and other circum- 

 stances permit, be completely exposed to the open 

 air in the same way as green-house plants, and shifted, 



