PINK. G3 



pearance on the surface of tlie cartli, and a universal 

 mouldiness amongst the plants, which will destroy 

 them. It requires more skill to know when and 

 how long the pipings should be exposed to the air, 

 while forming root, than for almost any other part 

 of the management ; on this single point, in great 

 measure, depends the good or ill success of the 

 whole undertakinfj. 



'* There is no great danger in taking off the 

 glasses for a few minutes or half an hour, when it 

 is cloudy, and the air rather warm and moist ; but 

 if no opportunity of this kind occur in due time it 

 should be done early in the morning, and rather than 

 omit doing it entirely, it will be better to take the 

 glasses off, if it is only for five minutes, turning 

 them upside down upon the path, in order to air 

 them, and replacing them again over the plants : 

 even this will be of great service, though not equal 

 to a more effectual airing at favourable times, which, 

 indeed, becomes more frequently necessary in pro- 

 portion to the length of time the pipings have been 

 upon the bed ; but when once they begin to strike 

 fibre, they will soon spindle up and become ex- 

 tremely weak, if not carefully attended to agree- 

 ably to the following directions : when their fibres 

 are formed, which the additional verdure and 

 growth of the plants will demonstrate, the glasses 

 should be placed over them very lightly, in order 



