468 TRANSACTIONS AND PROCEEDINGS OF THE [Sess. lvii. 



(c) Age ascertained from the annual rings (Mr. Collins, 

 Trentham). 



Increase. 



1-01 in. 

 0-74 in. 



(/) Oak at Baslow, Cheltenham, thrown down by a flood, 

 1879. Eings counted by Mr. E. M. Wrench, surgeon, 

 and information furnished by him to Sir 11. Christison. 



Girth 3 ft. up. 



AVithout the 

 Bark. 



With the 

 Barlv. 



No. of Eings. 



17 ft. S in. 



18 ft. 3 in. 



479 



Average Annual 

 Increase. 



0-46 in. 



(r/) Oak at Cammo, Midlothian. Eings counted by Sir 

 E. Christison, at 2 feet above ground. 



First 40 years, 

 Next 80 years, 



For 120 years, 



Average 

 Annual Iiicr. 



1-50 in. 

 0-82 in. 



After this the tree almost 

 ceased to grow for 30 

 years before being cut 

 down. 



1-00 in. 



2. Eate Fiio.M Girth Measukements in Tkees of 

 UNKNOWN Age. 



(a) Young oaks in Edinburgh Arljoretum, measured by 

 me, 1890-92. 



(h) Oaks, Dalswinton, Dumfriesshire, originally marked 

 and measured by Sir E. Christison and Mr. J. M. Leny of 



