ROSES UNDER GLASS 145 



and west sides should be about three feet high, and 

 the eaves be raised only about a foot above them 

 so as to admit as much light to the plants as possible. 

 The roof should be constructed so that the lights 

 between the main rafters can be entirely removed 

 during the summer months. This is very important, 

 for without some such arrangement the growth of the 

 plants during that season will be arrested by the hot 

 and dry atmosphere within the house, and red spider 

 will with difficulty be kept in check. The beds down 

 each side should be three feet six inches wide so 

 as to allow of two rows of plants ; the stronger- 

 growing varieties being placed at the back. If the 

 house be sufficiently wide to allow of a central bed 

 of the same width as the two side beds, this might 

 with advantage be planted with half standards. Venti- 

 lators should be inserted in the centre of each light 

 near the ridge so that air may be admitted on either 

 side of the house, as circumstances may direct, and to 

 the extent required. 



The spaces allotted for the beds should be cleared 

 out to the depth of two feet eight inches. In the 

 bottom should be placed a layer of stones six inches 

 deep, and above this a layer of gravel or other small 

 stones to the depth of another two inches in order 

 to ensure perfect drainage. The spaces should then 

 be filled up with the compost, consisting of six parts 

 turfy loam rather finely chopped, two parts well- 

 decayed manure, one part leaf mould, and the re- 

 maining part half-inch bones and coarse sand in 

 tqral quantities. The inner walls supporting the 



