ROSES UNDER GLASS. 103 



time in February or March. These plants will 

 probably be from two-and-a-half -inch pots and 

 will be ready for their first shift. Do not order 

 the plants sent by mail, for under no circum- 

 stances will plants by mail ever be as good as 

 those sent by express ; 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, un- 

 til after the first of June, or the plants will suffer 

 from mildew, etc. The Aphis must be kept off 

 by tobacco fumigation ; 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 



