SECT. IV. THE BUD. 281 



to be imbedded in its centre. They were the eggs 

 of the insect by which the bud had been punc- 

 tured. But on some trees of the same species 

 there was found a gall of a very different aspect, 

 which; though nearly of the same size, was covered 

 with a long and white shag, and did not exhibit 

 the same fleshy texture when cut open. It was 

 occasioned^ however, in the same manner ; the eggs 

 of the insect, which was no doubt of a different 

 species, being crowded together in the centre like 

 a cluster of small seeds, united by the lower ex- 

 tremity, and covered with the wool. Having cut 

 open some of both sorts about the end of the month 

 of June following, the maggots were now distin- 

 guishable in the former by the aid of the micrp- 

 scope, complete in all their parts ; and in the latter 

 each egg was found to contain a fly. On the ex- 

 tremity of some of the branches a few fragments 

 of galls of the former sort were still to be found, 

 which seemed to have stood from the preceding 

 summer, and in which the holes or perforations 

 were still to be seen through which the maggots 

 or flies had escaped. The fragments were quite 

 charred by means of the action of the atmosphere. 



The bud of the Willow, particularly Saliv Deformi- 

 HelLv,* is apt also to be punctured by insects and wn 

 converted into a gall. But the conversion is not 

 always complete; and in this case the shoot remains 

 dwarfish, anc 1 the leaves which are now protruded 

 * Smith's Introduction, p, 346. 



