344 OF GALLS AND 



ratus, the Sweet Pea of our gardens, a native 

 of a very hot climate, at the summits of 

 whose flower-stalks are generally found the 

 rudiments of one or more flowei's, not at- 

 tempted to be perfected. So also the first 

 Barley sown on the sandy heaths of Norfolk, 

 and indeed too many a following crop, bears 

 very few grains in an ear ; for the same 

 meagre supply of nourishment, bestowed 

 equally on a numerous spike of blossoms, 

 would infallibly starve them all. In like 

 riianner one seed only is perfected in the 

 Ixjst wild Arabian Coffee, known by its round 

 form ; while the West Indian plantation Cof- 

 fee has two in each berry, both consequently 

 flattened on one side. The former grows in 

 barren open places, in situations sufficiently 

 favourable for the impregnation of its blos- 

 soms, but far less so for the perfecting of 

 much seed ; while the latter, well supplied 

 with manure and moisture, is enabled to 

 bring every germ to maturity. 



Very strange effects are often produced 

 upon plants by the attacks of insects, whence 

 the various kinds of Galls derive their origm. 

 These are occasioned by the punctures of 



