HONEY-DEW. 79 



during the time of a honey-dew, more honey will 

 be collected in one week than will be afforded by 

 flowers in several. So great is the ardour of the 

 bees on these occasions, and so rapid are their 

 movements, that it is often dangerous to be placed 

 betwixt the hives and the dews. 



That species of honey-dew which is secreted 

 from the surface of the leaves, appears to have 

 been first noticed by the ABBE BOISSIER DE SAU- 

 VAGES. He observed it upon the old leaves of 

 the holm-oak and upon those of the blackberry, 

 but not upon the young leaves of either ; and he 

 remarked at the same time, that neighbouring 

 trees of a different sort were exempt from it : 

 among these latter he noticed the mulberry tree, 

 "which," says he, "is a very particular circum- 

 stance, for this juice " (honey-dew) " is a deadly 

 poison to silk- worms." 



Some years do not afford any honey-dew, it 

 generally occurs pretty extensively once in four 

 or five years. 



