APPENDIX A. 



The following extremely interesting figures, giving the results of 

 various degrees of ordinary thinnings in four several experiments, 

 are taken from Professor M. Kunze's remarkable articles in the 

 Tharander forstliches Jahrbuch for 1884. 



The quantities given are so many solid cubic meters per hectare. 



Experiment I. 



Experiment begun on self-sown crop of beech, average age 49 

 years, with a sprinkling of silver fir of mostly the same age ; 

 growth very vigorous ; leaf-canopy everywhere complete. First 

 thinning made at age of 49 years ; three subsequent thinnings at 

 intervals of 5 years. 



All the figures were obtained by actual measurement, except the 

 quantity of standing stock in area C at the commencement of the 

 experiment, which quantity has been estimated. 



A. Heavily thinned area. 



Timber. Smallwood. Total. 



Standing stock at 49 years ...110-11 87-96 198'07 



Yield of Windfalls ... 0'31 O14 0-45 



Thinnings ... 33'70 53'81 87*51 



Standing stock at 65 years ... 178'01 56'07 234-08 



Total production up to 65 years ... 212-02 110'02 322-04 

 Increase since the age of 49 years... 101-91 22*06 123-97 



B. Moderately thinned area. 

 Standing stock at 49 years ...104-02 86'97 190-99 



Yield of Windfalls ... 0'07 0'04 O'll 



Thinnings ... 11*34 39-02 50'36 



Standing stock at 65 years ... 188*06 59'46 247'52 



Total production up to 65 years ... 199*47 98'52 297-99 



Increase since the age of 49 years ... 95'45 11*55 107-00 



