Nov. 1892.] BOTANICAL SOCIETY OF EDINBUEcai. 



491 



tree of which the stump still remains, and which we have 

 shown must have been at least 30 feet in girth at 5 feet 

 up, and was, therefore, considerably more at 4 feet. This 

 would give a rate for about seventy-five years of something 

 l)etween 2i and 3 inches, which seems incredible, unless 

 trees of gigantic size have the power of developing, with 

 great rapidity, the conical swelling which is required to 

 support their increasing weight. 



Y. The Syca.moee (Acer jJsciuJojjlatanns). 



This species, a favourite in Scotland from its beauty and 

 power of standing our strong winds, seems but rarely to 

 have reached a gigantic size, as Mr. Hutchison's table 

 contains only one 20 feet in girth at 5 feet up. 



Scottish sycamores above 17 feet in girth at 5 feet from 

 the ground. From Mr. Hutchison's Table of 153 Scottish 

 sycamores (Trans. H. and Agr. Soc. Scot, xii., 1880). 



Number between 90 and 100 feet in height, 11 



,, 100 feet or upwards, ... 6 



Greatest spread of branches (eighteen given), 90 ft. 



Number above 15 feet in girth at 5 feet. 



15tol6feef 8 



Ki ,, 17 , 3 



17 ,, 18 3 



18 ,, 19 ,, 4 



19 ,, 20 1 



Above 20 ,, 1 



Total, . . 20 



Between 20 and 30 feet at 1 foot, . 9 



Above 30 feet at 1 foot, .... 1 



