TIMBER FOR AEROPLANE AND PIT-PROP PURPOSES. 



District grown : (5) Blelack (F.A.64). 

 Date of felling, October 1919. 



105 



District grown : (6) Drumlanrig ; {a) Burnpoint. 

 Date of felling, August 1919. 



District grown : (6) Drumlanrig ; (d) Column Wood. 

 Date of felling, August 1919. 



7-23 



38-25 



3210 



Split from top to bottom : gave way by crushing along 

 ring of knots 10 ins. from bottom. 



District grown : (6) Drumlanrig ; (^r) Auchensell. 

 Date of felling, August 1919. 



6-07 

 6-41 



Split from bottom upwards : cracked across 10^ ins. 



from top. 

 Failed by combined shear and crushing along ring of 



knots 5 ins. from top. 



District grown : (7) Brechin. 

 Material received, April 1920. Material tested, March 1921. 



