TREES AT AUCHENDRANE, AYR. Og7 



^irj?^ Doctor" may be accepted as correct. By substitutin.. 

 170. forl797 a. the date of the planting of the tree in the 

 garden, the annual rate of growth comes out as "95 inch The 

 shght difference between this rate and mine is evidently caused 

 by the fact that the tree grows on the side of a st^p slope 

 and Mr. Paxton has measured 5 feet up at a different point from' 

 what I have done. 



In comparison with these trees may be noted those at Rosneath, 

 two of which are probably the largest in Scotland— 



■crage increa-se. 

 ears, 'To in. 



•80 in. 



•50 in. 



•31 in. 



Av. 

 Sept., 1903-22 ft. 4i in. at 4 ft. 6 in.; height, 106 ft.; 8 y 

 21ft. Ill in. at 4 ft. g j^^ . i,ejgjjj_ 118 ft. j 

 15 ft. 9iin. at 5ft.; 

 14 ft. Sin. at 5 ft.; 



two others at Camstradden, Luss— 



June, 1905-14 ft. at 6 ft. ; height, 125 ft. ; 6i years, •TO in 



17ft. 7i in. at 6 ft.; height, 105 ft. (in 1903); „ -70 in. 



and another at Tyninghame, East Lothian, which we saw on 

 the occasion of the Society's visit in September, 1896, said to 

 have been planted in 1706, and thus about the same age as 

 the Union Trees-13 fe^t 3 inches at 5 feet; height, 105 feet 

 Average increase in girth for 190 years, •SO inch a year The 

 recent increase in two of the Auchendrane trees is greater than 

 in any of the others. 



The different rates of growth in girth in trees so near to ea<>h 

 other as those in Auchendrane are rather puzzling. It can 

 hardly be caused by the soil, but perhaps a difference in the 

 amount of moisture in the soil and the subsoil may account for 

 part of it, and, besides, no two trees are of exactly the same 

 strength and vigour. 



All the Silver Firs mentioned appear to be past the period of 

 their greatest growth. 



There are two fine Scots Firs here. One is supposed to have 

 been planted in 1707. It stands on the side of tlie river, and, 

 as seen from the house, forms part of a beautiful picture, the 

 clean stem showing well against the foliage of lower trees behind. 



