ROSES UNDER GLASS. 117 



first shift. Do not order the plants sent by 

 mail, for tinder no circumstances will plants 

 by mail ever be as good as those sent by ex- 

 press ; for the reason that the soil is shaken 

 off the roots when prepared for mailing, and 

 the roots get damaged in transit. I would 

 rather pay double the price for every plant 

 I wanted and have them come by express 

 than have them mailed at one-half the 

 price. 



After the sun causes the temperature of the 

 house to rise during the day, as during mild, 

 clear days in February, March, and April, 

 careful attention must be paid to ventilation ; 

 air is to be given from the ridge, never from 

 the front, until after the first of June, or the 

 plants will suffer from mildew, etc. The 

 Aphis must be kept off by tobacco fumiga- 

 tion ; never allow the plants to become in the 

 least infested. Prevent mildew by dusting 

 flowers of sulphur on the pipes or flues, 

 which should previously be moistened with 

 water. 



The plants will be ready for removal from 

 the houses to open air about the first of June. 

 The position chosen for plunging the roses 

 must not be one exposed to sweeping winds 

 or strong draughts of air. The pots may be 

 plunged in a bed of coal-ashes, or any similar 



