GROWING GOLD. 



143 



The trees of 25 years' growth, set 

 3ft. apart, 4840 trees, or one tree 

 on the centre of every square yard, f 45,000 

 cut 3600 per acre, or every other 

 tree, at 6 pience each, 



The trees of 50 years' growth 

 (that of 45 years' growth, in Rich- 

 mond Park, taken as the data, 

 page 67) to make the crop stand y 112,500 

 from 6ft. to 12ft. cut every other 

 tree, 900 per acre, at 5 shillings 

 each, top and bark included, 



The remaining crop of 302 trees- 

 per acre, at the end of 75 years 

 (or before, see page 108) the tree M,208,000 

 in page 84 furnishing the data, at 

 £.8 per tree, or £.2416 per acre, 



£.1,365,500 



The main point of this question may be 

 summed up in a very few words, namely, 

 the space necessary for an oak tree to grow 

 to maturity. It has been proved, that in the 

 ancient forests in England, in the fir forests 

 of the north of Europe, and in the back woods 



