22 



is better to do it often and but slightly at a 

 time, it being but a trifling encrease of labour, 

 compared with the probable consequences. By 

 this management one may expect to have some 

 of the free growing kinds well rooted, and 

 making rapid progress, in the course of a very 

 few weeks ; when such is the case, it will be 

 necessary to give them a little air by taking off 

 the bell glasses at night, and to keep them a 

 little moister than before. If they endure this 

 pretty well for a few days, the glasses may be 

 left off entirely; which w T ill harden and prepare 

 them by the time in which it may be thought 

 convenient to part and pot them separately. 



In taking the bell glasses off at night, it is 

 necessary to observe that from their closeness 

 they sometimes occasion the cuttings, more fre- 

 quently the harder sorts, to produce young 

 leaves and even shoots, before they have suf- 

 ficient roots : if at any time these should be 

 mistaken for well rooted plants, and their glas- 

 ses taken off accordingly, in a few hours they 

 may be perceived by their leaves beginning to 

 flag ; in which case the glasses must be imme- 

 diately replaced; otherwise, if neglected, these 

 tender shoots will be utterly spoiled, and it will 



