17 
BOARD OF CO'MMISSIONBRSi OF AGRICULTURE 
AND FORESTRY. 
ROUTINE REPORTS. 
Division of Forestry. 
Honolulu, Hawaii, January 3, 1910. 
The Board of Commissioners of Agriculture and Forestr}^, 
Honolulu, Hawaii. 
Gentlemen : — I have the honor to submit the following report 
of the Division of Forestry for the month of December, 1909 : 
EUCALYPTUS INVESTIGATION. 
The investigation of the planted groves of Eucalyptus in the 
Territory, of which mention has been made in previous reports, 
is now well under way. Mr. Louis Margolin, Forest Examiner 
in the United States Forest Service, arrived in Honolulu Novem- 
ber 29. On December 3, Mr. Margolin and I started on a quick 
but comprehensive trip to Maui and Hawaii, during which we 
visited the principal Eucalyptus groves on these islands. We re- 
turned to Honolulu on December 14. The object of this trip was 
to put Mr. Margolin well in touch with the local situation before 
detailed work was begun in any one place. 
The program of the Eucalyptus investigation, as it now stands, 
includes the compilation of all the available data in regard to the 
existing groves, the accurate measurement of a sufficient number 
of standing and felled trees to secure figures for tables that can 
be used in estimating volume and yield, and the taking of sample 
plots to show the height, size and yield of the trees in typical areas. 
In connection with this study there have been cut in the Tan- 
talus Eorest 150 Eucalyptus trees of three species — Blue Gum 
{E. globulus), Swamp Mahogany {E. robusfa) and Yate (E. cor- 
nuta) : These trees were taken out in places where the forest was 
in need of thinning, so that the double purpose is being served of 
getting the figures required for this investigation and at the same 
time bringing the Tantalus Forest into better condition. Arrange- 
ments have been made with the Oahu Railway & Land Co. where- 
by these trees will be made into ties and posts. After being prop- 
erly seasoned, the ties will be laid in different parts of the track, 
carefully marked and dated. Different methods of seasoning 
will be tried. The experiment as a whole should in the end yield 
facts of great interest, for it is the first time that the opportunity 
has presented itself of systematically trying out locally grown 
Eucalyptus. 
