GROWING GOLD. 



39 



cious thinnings and pmnings too are no less 

 destructiye, as we have previously shown. 



Force of the wind ascertained by the 

 anemometer, by Lind, Daniel, and others. 





Miles per hour. 



Force in lbs. 

 per square foot. 



Gentle 



4 



5 . . 



. . 0,079 





8 



0 . . 



, . 0,260 





16 



0 ... 



. 1,170 



High 



36 



0 ... 



. 5,280 





62 



0 . . . 



. 15,625 





88 



0 . . . 



. 31,250 



Great Hurricane . 



120 



0 .. 



. 58,000 



Phillips's Million of Facts, page 455. 



This statement will surely justify all the 

 arguments here advanced as to the necessity 

 of impervious shelter for the growth of oak 

 trees. It is a matter of surprise that this was 

 not demonstrated long ago, for Strutt says, in 

 his Sylva Britannica, ''it is peculiar to this 

 part of Renfrewshire, that the branches of 

 trees generally extend more to the south-east 

 than to the north-west." It is true he noticed 



