56 LEGUMINACE.E. 



grown ; and that those with a reddish heart, last twice as 

 long as those in which it is light-coloured or white. It 

 is also used by shipwrights, whenever it can be procured 

 of sufficient size, as it possesses qualities which render it 

 superior even to the live oak or the red cedar ; the supply, 

 however, for this purpose is very limited, as in those dis- 

 tricts where it abounds and thrives the best, nine tenths of 

 the trunks do not exceed a foot in diameter. It is also 

 used almost to the exclusion of all other woods for trenails 

 in the American sea-ports ; and, as we have previously re- 

 marked, these are now extensively exported from thence to 

 England and other parts of Europe. 



In the old American States, where the Locust is now 

 frequently planted (all remains of the ancient forest being 

 nearly obliterated), it has often been attacked by the larva 

 of a moth (Cossus Bohiniee), which penetrates and feeds 

 upon the living wood ; in the same manner as the Cossus 

 ligniperda does upon that of the oak, willow, &c. in 

 England. 



In the extensive list of pseud-acacias contained in the 

 " Arboretum Britannicum," we find that the largest speci- 

 mens growing in England, have attained, under favourable 

 circumstances, a diameter of upwards of three feet, and a 

 height varying from forty-five to eighty feet. The finest in 

 Scotland according to Sir T. Dick Lauder, are at Niddrie 

 Marischall near Edinburgh, where the largest measured, 

 some five or six years ago, nine feet in circumference at 

 three inches above the ground. This tree divides into 

 two great limbs, which then measured respectively five 

 feet four inches, and four feet four inches in girth. At 

 Twizell, it is two feet six inches in girth at one foot 

 from the ground, and upwards of thirty feet high at the 

 age of twenty years. 



