September, 1911.] 



205 



Saps and Exudations. 



very fine scheme indeed. It would 

 accomplish just what Mr. Williamson 

 said it would. It would be more 

 economical. You need to have a large 

 plant in order to manage the thing 

 economically. If you are going to have 

 such a thing on the market as Hawaiian 

 rubber, it should be always of the same 

 quality, so that the market can be kept 

 up, so it seems to me that the rubber 

 situation would be greatly improved if 

 the companies were united on an equit- 

 able basis. 



Gentlemen, I thank you for your 

 attention. 



Mr. Anderson : At the last Convention 

 we asked Dr. Wilcox about the spray. 

 As we have only used this material for 

 about a year, he might be able to tell us 

 what he thinks about it. 



Dr. Wilcox : As I said this morning, I 

 have used several formulas at the 

 Station. I believe you found that 1 to 

 20-24 is about right; about a hundred 

 gallons covers an acre. At that rate, 

 only 5 pounds of arsenic were used per 

 acre. It is in a very soluble form. The 

 most of it is held upon the plant and 

 finally falls down when the plant falls 

 down, or if you burn it up, it is burned 

 up in that way. Five pounds per acre 

 is actually less than has been applied 

 for 20, 30 and 40 years on the same 

 ground in orchards on the mainland 

 without causing any injurious effects 

 on the soil. The presence of arsenic, 

 even in a soluble form, would not 

 cause a burning effect on the roots, 

 because they are too thickly covered 

 with bark, and the mere presence 

 of it at that rate does not cause 

 any harmful effect on plants. I don't 

 see any reason why we should worry 

 about that. If it is to be kept up for 

 years and years and years, you might 

 think there might be an accumulation. 

 The soluble salts are contiuually washed 

 out of the soil, and I do not believe it 

 could accumulate beyond a certain limit. 

 I doubt whether it will ever accumulate. 



Mr. Turner : I may say that in spray- 

 ing our trees the barrel was placed 

 between two trees, and in dipping out 

 from the tin there was a certain amount 

 of dripping, and the exact amount that 

 was wasted I do not know, but it was 

 merely dripping. The bark burst open 

 and bled all the way through and the 

 tree was defoliated. 



Dr. Wilcox : How much was poured in 

 there ? 



Mr. Turner : I was not along with 

 them at the time. The trees are not 

 dead, but they have not recovered yet. 



Mr. Cooke : I would like to offer a 

 suggestion to the Convention at this 

 time. It seems to me that we are about 

 getting to a position where the rubber 

 will be placed on the market. It might be 

 a good idea to have a Committee to look 

 into the marketing conditions and make 

 suggestions at the next Convention. It 

 seems to me that if a certain standard 

 of rubber can be produced, possibly a 

 unique form of putting it upon the 

 market might give the Hawaiian planter 

 a certain advantage. I don't believe 

 there is much call for a report, but just 

 offer this as a suggestion, 



Chahman Lufkin -• It seems to me 

 eminently in order that such a Com- 

 mittee should be appointed. 



Mr. Cooke : I make it as a suggestion, 

 and as a motion also. Dr. Wilcox said 

 that in all shipments we should main- 

 tain a certain standard, and that in my 

 experience is most essential, and it is 

 very essential that the bulk of the pro- 

 duct should come up to the standard. 



Chairman Lufkin : The motion is duly 

 seconded that a Committee of three be 

 appointed to investigate the rubber mar- 

 ket, looking foward to future market- 

 ing of the rubber crop on several plant- 

 ations. Of course, in the present con- 

 dition of the rubber business, we are all 

 acting for this individually, and it would 

 hardly be practicable, but in view of the 

 fact that combinations are likely to be 

 made, I think we are good business men 

 enough to see the advantage of it, where 

 the marketing can be done by one con- 

 cern or agency. 



Mr. Turner : There are no two plant- 

 ations that bring the same rubber ; they 

 do not bring the same price. 



Chairman Lufkin : The object is io 

 investigate the market, ascertaining 

 the best form in which to place the rub- 

 ber on the market, pancakes or what- 

 ever it is, and at the next meeting of 

 this Convention to make a report which 

 will put us in the right way of market- 

 ing the rubber at that time. 1 under- 

 stand this Committee is to make merely 

 preliminary investigations. Motion 

 carried. 



Mr. von Damm : I would like to say 

 that some time ago I got a small sample 

 of Nahiku rubber from Mr. Williamson 

 and sent it to London, where a friend of 

 mine iu turn took it to experts, and he 

 wrote me and said that they had not 

 seen rubber in that shape before, but 

 that these experts, after analyzing the 

 sample, had said that it would fall not 

 very far short from the top price of 

 Para, and they were very anxious to 

 find out whether it came from the hevea 



