98 
VOLUNTEER FOREST GROWTH 
By H. B. Pen hallow 
At an elevation of about nine hundred feet and below a wind- 
break of Swamp Mahogany {Eucalyptus robusta) and Ironwood 
(Casuarina equisetifolia) , planted about twelve years ago by the 
Wailuku Sugar Company along the south side of Waikapu Val- 
ley, Maui, a volunteer growth of seedlings of the above trees is 
making a promising showing. 
These have started on a badly-eroded pali which is exposed to 
a strong, cool wind and subject to heavy wash from rains which 
probably is responsible for the spread of the seed but hardly the 
best conditions for fostering the growth of young trees. 
The Ironwoods are the more numerous and the parent trees 
of this species in the windbreak have made the more vigorous 
growth, but the seedling Swamp Mahoganys evidently started 
lirst as they are the largest of the young trees. 
The illustration accompanying .this article shows the rugged 
character of the land and some of the young seedlings which will 
give an indication of the conditions under which they have grown 
and the possibilities of reforestation with these species on eroded 
mountain sides. 
Trees of the same species which have been set out on similar 
locations on this plantation and elsewhere are also doing well. 
The feature of volunteering in poor soil under apparently ad- 
verse conditions makes them of particular value. 
DIVISION OF FORESTRY 
ANNUAL REPORT FOR CALENDAR YEAR 1921 
Honolulu, Hawaii, May 4, 1922. 
Board of Commissioners of Agriculture and Forestry, 
Honolulu. 
Gentlemen: I respectfully submit the following brief report on the 
work of the Division of Forestry for the calendar year 1921: 
INTRODUCTION 
It is a pleasure to note that considerable progress was made during 
the year in forest protection and forest extension, the two main activi- 
ties of this Division. In the work of fencing forest reserve boundaries 
there was an advance of more than six times the amount of fencing done 
during the previous year and more trees were planted in a larger number 
of forest reserves on the four main islands. 
FOREST RESERVES 
There were no changes in forest reserve areas during the year with 
the exception of five acres which were withdrawn from the Honolulu 
Watershed Forest Reserve on June 28, 1921, at the request of the Com- 
missioner of Public Lands so that the land could be used for public pur- 
poses. In the 47 forest reserves throughout the islands there are now 
