Xcv. 18:i-2.] j;OTANICAL SOCIETY OF EDINBUltGll. 



493 



accurate girth measurement, as the Lurk is not only very 

 rougli, but is apt to scale off. As far as iny data go, 

 liowever, this species seems to be of slow growth in girth, 

 although ]\Ir. Hutchison thinks it grows quickly in height. 

 The lower measurements — at 3 feet and 1 foot — indeed 

 yield better results, possibly indicative of rapid growth in 

 the conoid base, but measurements there are little reliable, 

 unless the position has been carefully marked. 



Aged trees at Castle-Menzies, taken at 5 feet by Sir 

 Eobert Christison in 1879, and by Sir E. Menzies in 189 2. 



