68 ESSAY ON FUEL PLANTATIONS. 



ground and 3 feet at 100 feefc in height, the total height 

 being 140 feet. These 25 trees average 120 cubic feet each 

 of good timber, and the trees are under 25 years of age. 

 They occupy a space of one-sixth of an acre. Then 25 x 120 

 cubic feet = 3,000 cubic feet besides tops and branches. It 

 is not possible for an acre to carry six times this quantity, 

 because the roots of these trees occupy an acre of space. It 

 must be added that, though these trees actually stand on 800 

 square yards or one-fourth of an acre, their roots may really 

 occupy an acre, or even more. These examples will show 

 to what growth E. Globulus may arrive at within 40 years. 

 E. Amygdalina, the giant of the Australian forests, far ex- 

 ceeds this; 450 feet having been found to be the height of 

 more than one tree. If we assume that between ten and 

 thirty years, 400 trees are taken out and 100 left standing till 

 40 years old, and we take the mean of 400 trees at 50 cubic 

 feet, (leaving 100 trees standing till 40 years old) being the 

 mean of trees 10 to 30 years old, then we have for 400 trees 

 of 50 cubic feet each, a total of 800 tons. Half of this 

 amount at Us. 8 a ton gives Us. 3,200, the other half 400 tons 

 at 8 annas a cubic foot for building purposes gives 400 tons 

 X 25 cubic feet = 10,000 cubic feet at 8 annas = Rs. 5,000. 

 If we take the last 100 trees at 40 years old as measuring 

 100 cubic feet each, we have 100 X 100 = 10,000 cubic 

 feet at 12 annas = Rs. 7,500; tops and branches 1 ton each 

 at Rs. 8 = Rs. 800 or in all Rs. 8,300. There is a great 

 consumption of this wood for rafters, planks, reapers, and 

 for building purposes. Ordinary woods sell for building 

 teak, Rs. 2 ; vengay, Rs. 1-8-0; ven teak, Rs. 1-4-0 the cubic 

 foot. Eucalyptus wood may be thoroughly seasoned in 

 tanks in which unslaked lime has been placed in the pro- 

 portion of one cubic foot of lime to six hundred of water ; 

 three months' soaking is enough for small scantlings, largo 

 beams require six mouths for the lime to permeate all the 

 tubes and to be deposited, for the theory is, that the sap is 

 driven out and the lime water takes its place. Of course, 

 all timber should be felled at the wane of the moon, and in 

 December, January and lYbruary. Acacia molisahna makes 



