EXPERIMENTS IN THINNINGS. 493 



C. Unthinned area. 



Timber. Smallwood. Total. 



Standing stock at 49 years ...107-07 87-47 194-53 



Windfalls ... 0-05 0-04 0-09 



Deadwood ... 1-35 3-91 5-26 



Standing stock at 65 years ...199-66 82-34 282-00 



Total production up to 65 years ...201-06 86-29 287-35 



Increase since the age of 49 years ... 93-99 —1-17 92-82 



Experiment II. 



Experiment begun on a furrow-sown ciop of Scots' pine 19 

 years old ; width of furrows 30 centimetres, interval between them 

 1 metre. First thinning made at age of 19 years, 4 subsequent 

 ones at intervals of 5 years. 



All the figures were obtained by actual measurement, except 

 those for the quantity of stock at the commencement of the experi- 

 ment, which figures are mere estimates. 



A. Heavily thinned area. 

 Standing stock at 19 years ... 0-0 96' 10 96-10 



Yield of Windfalls ... 5-73 33-46 39-19 



„ Thinnings .... 19-16 65-18 84-34 



Standing stock at 40 years ... 194'51 76-81 271-32 



Total production up to 40 years ... 219-40 175 45 394-85 



Increase since the age of 19 years ... 219-40 79-35 298-75 



B. Moderately thinned area. 



Standing stock at 19 years ... 0-0 96-10 96-10 



Yield of Windfalls ... 4-79 25-88 30-67 



„ Thinnings ... 9-71 43-81 53-52 



Standing stock at 40 years ...174-56 79-01 253-57 



Total production up to 40 years ...189-06 148-70 337-76 



Increase since the age of 19 years ... 189;06 52-60 241-66 



