278 



slightlv cooler surface thus preseuted would be sufficient to tip 

 the delicate balance of other natural factors and cause some of 

 the moisture to be precipitated. 



Whether or not this would actually happen, experience in 

 Upper Hamakua, Hawaii, has shown that through the drip from 

 condensation on the leaves of trees standing exposed to moisture- 

 bearing fogs very considerable quantities of vater can be and in 

 fact are collected in tanks and cisterns. I see no reason why a 

 similar state of things should not obtain in upper Kula. And in 

 view of the need of water 1 believe this is a phase of the subject 

 that should at least be carefully investigated. 



Sufficient returns to justify the initial outlay would in my judg- 

 ment be got from the wood and timber produced from blocks of 

 forest established in the reserve. Any beneficial influence that the 

 forest might otherwise exert would be an advantage thrown in. 



In any planting undertaken in the Kula Forest Reserve, the idea, 

 should be kept constantly in mind that in the end natural repro- 

 duction is to be depended on for the spread of the trees. The 

 initial planting should be made so that the trees set out would 

 act in the most efficient way as producers and distributers of seed. 

 This, of course, applies to whatever species are used, Eucalypts or 

 trees from the north temperate zone. 



The questions of how the initial planting is to be paid for and 

 of just what trees should be used do not need to be considered 

 here. It is enough now if this area is set apart as a forest reserve. 



Tlic Polipoli Section. 



Any tree planting undertaken on the Kula I-'orest Reserve- 

 should begin at the south end in the section that has for some 

 years been held by the Land Office under the terms of Govern- 

 ment Lease No. 542. as the Polipoli Spring Reserve. This area, 

 a portion of the government land of Kamaole, is about a mile 

 square. For the most part it is open land, covered by a heavy 

 growth of grass. There are a few groups of Mamane and some- 

 scattering trees of other species. 



The Polipoli water sources consist of a battery of six springs, 

 two of which, Polipoli and Wai Kawekane, are within the fenced 

 Polipoli reserve, tinder Lease No. 542, the Henry Waterhouse 

 Trust Co.. Ltd., as trustees for the Ulupalakua Ranch, hold, rent 

 free, for a term of 20 years, expiring in 1^22. five-eighths of the- 

 flow from Polipoli Spring. Prior to the construction of the Kvda 

 Pipe Line the other three-eighths was conveyed by \nY)e down the 

 slope to a tank on -the government road as a public supply for the 

 ])cople of that locality. Of late this pipe has at times been out of 

 repair. The rest of the water from Polipoli jiropcr. with that 

 frf»m the other springs, goes l)v ])ii)e to various parts of the l^Iu- 

 ])alakua Ranch. 



I'nder the terms of Lease No. 542 the Polipoli Reserve has been- 



