10 



germinate on December 21, and are coming along nicely at the Govern- 

 ment Nursery. I am informed by Dr. A. L. Dean that, while this is only 

 one of the so-called chaulmoogra oil trees, its seeds contain the oil which 

 is used in the cure for leprosy, and it is therefore 'a proper tree to plant 

 for this purpose. 



ALGAROBA SEED TEST. 



The results of a test, conducted earlier in the year, on the germination 

 of seed of the algaroba or mesquite (Proposis juliflora) when given dif- 

 ferent treatment before sowing were written up and printed in a special 

 article which appeared in the December, 1920, Hawaiian Forester and Agri- 

 culturist, A summary of the results obtained by the test is as follows: 



1. Algaroba seed is prepared for quick germination on passing through 

 the alimentary system of a horse only when the seed is removed from the 

 tough parchment-like covering. 



2. Naked algaroba seed, untreated in any manner, gives the best germi- 

 nation results. 



3. Placing the naked seed in boiling water and soaking it for 24 hours 

 does not injure the seed, but greatly hastens germination. 



4. The parchment-like seed covering greatly hinders germination. 



TEEES PLANTED IN 1920. 



On December IS, postal reply cards were sent out to all known tree plant- 

 ers throughout the Territory in order to obtain reports on the number and 

 species of trees planted and the purpose of planting. These statistics will 

 be used in the forthcoming biennial report, now in the course of prep- 

 aration. 



TREES FOR ARBORETUM. 



A visit was made on December 28, to the Vineyard Street nursery of the 

 H. S. P. A., with Dr. H. L. Lyon, who kindly let me make a selection of 

 trees, which we did not have on hand, for planting in the new Makiki Ar- 

 boretum and on the Manoa Ranger Station. The following trees were on 

 December 30 added to the arboretum at the latter station: Aulu (Sapindiis 

 Oahuensis), Chaulmoogra oil tree (Eydnocarpus antlieJminticus), Balsa 

 {Ocliroma Jagopus), and kauri pine (Agathis austraUs). 



MAKAPALA NURSERY. 



On December 10, while on the trip to Kohala, I visited the H. S. P. A. 

 tree nursery at Makapala, in the Kohala Mt. Forest Reserve, Hawaii, in 

 company with Dr. Lyon and Ranger H. L. Denison,. The stock on hand 

 of 30,000 potted trees of various species, most of which were shipped up 

 from Honolulu without soil around the roots, were in an excellent condition, 

 and the force of nine men was busily engaged in planting out trees' on 

 private land in the reserve. The chief ditficulty in reforestation here will 

 he the struggle against Hilo grass, and the trees will have to be continually 

 weeded before they are high and large enough to shade it out. 



TREE MEASUREMENTS. 



One day was spent with the Assistant Superintendent in taking measure- 

 ments and making observations on trees planted in Manoa Valley three 

 and four years ago, to determine the best species, of a large number, most 

 suitable for extensive planting. The results of these observations will soon 

 be made tlie sulvject of a special report. 



FOREST PROTECTION. 



On December 1-4 I took Ranger V. L. Ellis to Waiauae and installed 



