finally* a thin-shelled variety of Macadamia nut must be developed, 
for, although very satisfactory nut crackers are to be found on the 
market, a method of adapting them to the nut industry in Hawaii has 
not yet been fully worked out. The station has been endeavoring for 
a number of years to solve the more pressing problems and has briefly 
recorded the results of the experiments in progress in its recent 
annual report (10, p. 18, 19; 11, p. 8; U, p. 8; 20, p. 22). 1 
The literature dealing with the Macadamia nut is very limited. It 
consists mostly of general information published in the form of 
magazine and newspaper articles. Several brief but valuable arti- 
cles on the Macadamia nut have been published in Australia (16; 
17; 19; 21, p. 91). It is believed that a bulletin dealing with the 
subject in a general way will be of value to all Macadamia-nut 
growers at this time. 
HISTORY AND DISTRIBUTION 
The Macadamia-nut tree is indigenous to Queensland and New 
South Wales, Australia. Together with several related species it 
grows wild there. Certain variations or strains of Macadamia temi- 
folia are particularly valuable for their hard wood and edible nuts. 
The tree was probably first described in 1870 (1, p. 1181). A brief 
but excellent description of tne Macadamia, including cultural 
requirements, was published in 1893 in Australia (19, p. 3-5). Since 
1900 attention has been given to its cultivation as a nut-producing 
tree, and its culture has spread to other parts of Australia (16, 21), 
and to Hawaii (2, p. 698, 4, 9, 15), California, Texas, Florida, and 
a number of Mediterranean countries. 
Macadamia tei^nifoliax is recorded as having been introduced into 
Hawaii for the first time by the late E. W. and R. A. Jordan about 
1892 (8, p. 18), the latter of whom secured the seeds in Queensland 
and the former of whom germinated them and grew the trees at his 
home in Wyllie Street, Honolulu, where six of the original trees 
are still to be found. (Fig. 1.) 
When the slopes of Mount Tantalus, back of Honolulu, were being 
reforested in 1892, 1893, and 1894 (7, p. 21) under the supervision 
of the Board of Agriculture and Forestry of the Hawaiian Govern- 
ment, a small planting of about half a dozen trees was set at an 
elevation of 1,000 feet along with some wattle and Eucalyptus trees. 
The Macadamia trees did not fruit until about 1908, probably because 
of their crowded condition. Three of these trees are on the land of 
Kewalo-uka, which had been set aside as an agricultural experiment 
station site by the Hawaiian Government and was made available 
for the use of the station in 1901. Three other trees of the same 
planting are to be found growing just across the line on the Terri- 
torial forest reserve. The boundary between these two tracts was 
not accurately determined at the time of planting. The trees began 
by 1910 to produce sufficient nuts to attract attention. 
An earlier introduction of the Macadamia is reported by Forbes 
(6, p. 248) to have been made by W. H. Purvis, of Kukuihale, Hama- 
kua district, Hawaii, about 1881. From Mr. Forbes' description of 
the tree, however, and particularly from his statement as to the 
i Reference is made by italic numbers in parentheses to " Literature cited," p. 23. 
