TIMBER FOR AEROPLANE AND PIT-PROP PURPOSES. 



107 



District grown : (6) Beuchan Hill, Drumlanrig. 

 Date of felling, August 19 19. Material tested, February 1921. 



District grown : (7) Brechin. 

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



6 "20 



39-25 



Cracked across ring of knots at centre and split down- 

 wards. 



Cracked across ring of knots 12 ins. from the bottom 

 and split upwards. 



Split in two at top and sheared 4 ins. to 7 ins. from top. 



Cracked across ring of knots at centre of specimen. 



Sheared and crushed about 5 ins. from top and split 

 upwards in several places. 



Cracked across 1 1 ins. from top. 



Failed by crushing 12 ins. irom top and split into 

 3 parts. 



Originally split : failed by crushing 5 ins. from bottom, 

 slight shearing 18 ins. from bottom. 



District grown : (8) Beauly. 

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



District grown : (9) Larbert. 

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



