OBSERVATIONS ON VEGETABLES. 421 



RENOVATION OF LEAVES. 



When oaks are quite stripped of their leaves by chaffers, they 

 are clothed again soon after Midsummer with a beautiful foliage : 

 but beeches, horse-chestnuts and maples, once defaced by those 

 insects, never recover their beauty again for the whole season. 

 WHITE. 



ASH TREES. 



Many ash trees bear loads of keys every year, others never seem 

 to bear any at all. The prolific ones are naked of leaves and 

 unsightly ; those that are sterile abound in foliage, and carry their 

 verdure a long while, and are pleasing objects. WHITE. 



BEECH. 



Beeches love to grow in crowded situations, and will insinuate 

 themselves through the thickest covert, so as to surmount it all : 

 they are therefore proper to mend thin places in tall hedges. 

 WHITE. 



SYCAMORE. 



May 12. The sycamore or great maple is in bloom, and at this 

 season makes a beautiful appearance, and affords much pabulum 

 for bees, smelling strongly like honey. The foliage of this tree is 

 very fine, and very ornamental to outlets. All the maples have 

 saccharine juices. W T HITE. 



GALLS OF LOMBARDY POPLAR. 



The stalks and ribs of the leaves of the Lombardy poplar are 

 embossed with large tumours of an oblong shape, which by 

 incurious observers have been taken for the fruit of the tree. These 

 galls are full of small insects, some of which are winged, and some 

 not. The parent insect is of the genus of cynips. Some poplars 

 in the garden are quite loaded with these excrescences. WHITE. 



