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DISCUSSION. 
Just two years ago when I went over there, the Plantation 
w^as considering putting the lands under cultivation. About 
two acres had been cleaned up and some 30 or 40 hevea trees 
had been planted there. Then there were very few trees that 
would run 8 inches. Today, under clean cultivation, with 
many of the smallest trees thinned out, the average size of 
the trees that I mentioned, is now about 12 to 18 inches, with 
many 20 inches, and some even as high as thirty. The growth 
of older trees under clean cultivation is not as rapid as that of 
the later plantings, and it is evident from this that if you 
plant a tree in plowed land it will grow faster than a tree that 
has been growing for several years in unplowed land, and is 
clean cultivated later on. Trees of later planting, in most 
cases have caught up with the other trees. You can find there 
acres and acres of trees that will average twelve to eighteen 
inches. 
Mr. Lindsay: How about the hevea trees? 
Mr. Williamson : The hevea in some lots seems to be doing 
nicely. I think it was in June, 1907, that the first lot was 
set out up there, and those I have measurements of. They 
average about 10 inches at the base, and the bark will average 
a fourth of an inch in thickness 22 inches from the ground. 
The hevea trees throughout the Plantation seem to be grow- 
ing very slowly, as compared with the ceara. 
Mr. Thayer : Will it be a long time before any of those 
hevea trees produce? 
Mr. Williamson: I am inclined to think it will be a year 
or two. If you wait until they are 20 inches in circumfer- 
ence, it will be a couple of years at least. 
Dr. Clark: Are they injured by the heavy winds — do the 
leaves fall off? 
Mr. Williamson : The hevea leaves do not stand the wind. 
The leaves seem to curl up in the wind and get brown on the 
edges and blow off. The trees in our nursery average about 
10 inches. A few ceara trees on our Plantation that were 
given garden cultivation from the first measure a little over 
40 inches, and the average is 30 inches. That is a very good 
growth. They have grown so fast that the wind has not dam- 
aged them a particle. 
ADDRESS BY DR. E. Y. Y^ILCOX. 
The chairman then introduced Dr. E. Wilcox, director 
of the United States Agricultural Experiment Station at Ho- 
nolulu, who spoke as follows : 
One of the things that strikes one, in looking into the his- 
tory of the rubber industry in Hawaii, is the fact that the men 
