Dye Stuffs and Tanning Substances" 210 



total of $689'25. Allowing the same price for the two tons of bark given away 



there would be an additional value of $46 62. 



A summary of the amount produced by these six acres of Black Wattle is 

 then as follows :— 



36 tons of bark sold ... ... ... $ 839"44 



2 tons of bark given away ... ... ,, 46 62 



500 posts ... ... ... ... „ 125-00 



88 cords of wood ... ... ... „ 689*25 



Making a total of ... ... ... $1,700-31 



or equivalent to $283'38 per acre. 



As stated above, the soil on which this grove was planted was rocky, thin 

 and poor, and the trees scrubby. To my personal knowledge, in good soil on Tantalus 

 and a number of locations on Hawaii and Maui, this tree grows to twice the size of 

 the trees cut on Tantalus in much less time. 



I am also informed by Mr. Smith that the Black Wattle bark is one of the 

 best of the tanning barks, and the average price of good bark is much higher than 

 that realized by him, the low price being on account of this being an experiment, its 

 individual character being not yet established. 



I am also informed by Mr. Smith that the demand for tanning bark is practi- 

 cally unlimited. The foregoing demonstration by Mr. Smith opens up an entirely 

 new field for a profitable industry in Hawaii, either as a proposition by itself or 

 more particularly as an incidental profit in connection with plantations which are 

 now having to purchase their firewood. 



The tree is a quick grower, and planted along the lines of roads and in barren 

 spots should furnish all the firewood needed by the plantation, leaving the bark a 

 net profit. — The Hawaiian Forester and Agriculturist. 



[This tree is now largely grown up-country in Ceylon, and we should be glad 

 to hear if anyone can show results to equal those given in this paper. — Ed. T.A. & 

 Mag. C.A.S.] 



