75 
FOURTH ANNUAL MEETING HAWAUAN RUBBER 
GROWERS' ASSOCIATION. 
On January 23, 1911, in the rooms of the Chamber of Com- 
merce, in Honoluki, was held the Fourth Annual Meeting of 
the Hawaiian Rubber Growers' Association. After opening 
remarks by the President, Mr. F. L. Waldron, Mr. W. A. 
Anderson, manager of the Nahiku Rubber Company, was 
called upon for an address. 
ADDEESS OF MR. W. A. ANDERSON. 
Mr. Anderson's subject was the "Results of Tapping." His 
address, in part, is as follows : 
''We had very little data on the commercial tapping of 
Ceara trees, because practically no work had been done, and 
therefore we started more or less independently at the be- 
ginning. At present, however, there is quite a good deal of 
tapping of Ceara trees in South America and South Africa, 
reports of which are available from time to time, and they 
are of assistance to us. 
"We are now tapping Ceara trees by making a vertical 
channel up to a height of about five or six feet, the spout be- 
ing inserted at the bottom. Then on one side we make diag- 
onal cuts about six inches apart, beginning at a point six 
inches above the spout and leading into the vertical channel. 
On the other side of the channel similar vertical cuts are 
made half way between those first made, each cut extending 
a quarter of the way around the tree. In this manner one- 
half the circumference of the tree is being tapped. At the 
next tapping these diagonal cuts, but not the vertical channel, 
are pared on the lower side, removing a strip of bark about 
a third of an inch wide. At the third tapping this new cut is 
pricked along its upper edge, and at the fourth it is pricked 
along its lower edge ; after which it is again pared and pricked 
in the same manner, so that one paring is followed by two 
prickings, making one paring in every three tappings. 
"This system was evolved after trying paring alone, prick- 
ing alone and pricking at the same time. Pricking is more 
rapid than paring and gives larger returns for a given amount 
of labor. The paring alone gives a profitable yield. The 
fewer parings, as compared with the number of prickings, 
the better, and while the paring alone gives a profitable yield, 
the pricking done as described gives a better yield. After the 
outer bark has been removed a new and tough bark soon 
forms, which makes pricking alone unprofitable in a few 
weeks after the bark is removed. 
