culty in keeping the road dry, while at the same time securing 

 the benefits of the shade trees. 



The yield of wood from roadside trees is considerable. The 

 main road leading east from Waimea on the Island of Hawaii 

 is lined with blue gum trees for several miles, spaced eight feet 

 apart, and planted in 1894 and 1896. The trees, fifteen years 

 old, average 11 inches in diameter and 70 feet in height. It will 

 be found by referring to the volume table (Table III) that a 

 tree 11 inches in diameter and 70 feet high contains on an aver- 

 age .192 cords of wood. Trees planted 8 feet apart will run 660 

 trees to the mile on each side of the road, or a total of 1,320 

 trees for both sides. The roadside trees along the Waimea road, 

 now fifteen years old, thus contain 253 cords of wood per mile, 

 which, at a value of $2.50 a cord, amounts to $632.50. 



When planted on private land, the trees may be grown in two 

 or more rows and managed in such a way that the rows are cut 

 successively, at definite intervals, to supply the necessary fire- 

 wood and fence posts without destroying the value of the trees 

 for the main purposes for which they were planted. 



KEEPING RECORDS. 



If forest planting is to be done systematically and in a busi- 

 nesslike manner, business methods should be used. It is very 

 important that a record be kept of the trees planted, of the costs 

 of the operations, and of the returns obtained. This does not 

 involve complicated bookkeeping, a simple record of the differ- 

 ent operations being sufficient. An occasional half hour spent 

 in this work will keep the history of the plantation up to date. 

 Following is a suggested form for keeping a record of the plan- 

 tation : 



