28 1 



RECENT PUBLICATIONS. 



Report on- Agricultural Investigations in Haii'aii, 1905, by 

 Jared G. Smitl). U. S. Department of Ao^riculture, Office of 

 Experiment Stations, Bulletin No. 170. This publication is a 

 resume of the principal work during 1905 of the Hawaii Ex- 

 perim.ent Station. During the year important work has been 

 conducted in ascertaining the value of the black-wattle in Ha- 

 waii as a source of tan-bark. The results of these investiga- 

 tions have already been published by the station in Bulletin 

 No. I J. The trees available covered about six acres, growing 

 on the station grounds at an elevation of about 700 feet. About 

 36 tons of dry bark were obtained, averaging in value $23.31 

 per ton. A yield of 6 tons of bark may be considered very 

 low, but the small crop is attributed to causes which can 

 easily be obviated. Tt is believed that wattle cultivation would 

 prove extremely profitable if a sufficient acreage were planted 

 to enable the owner to market a defmite amount of tan-bark 

 every year after the plantation has reached maturity. 



Perhaps the most important held work of the year has been 

 achieved in tobacco growing experiments. The station is to be 

 congratulated upon the valuable results it has obtained in this 

 direction whicli will no doubt have a far reaching effect upon 

 the future agricultural development of the Territory. Even 

 though the Hawaiain crop must be marketed in open competi- 

 tion with Cuban and Sumatran leaf there is a sure success for 

 certain types of tobacco which the experiments have shown to 

 be suitable for growth in the islands. 



Probabl}^ the new industry which is attracting most atten- 

 tion in Hawaii today is the cultivation of rubber. The outlook 

 for this is particularly promising. The conditions in Hawaii 

 are believed to be extremely favorable for the cultivation of 

 Ceara rubber trees and one of the newly formed companies has 

 already planted 100,000 seeds of this species and expects to 

 have half a million trees growing within two years. 



The cultivation of cassava for the production of starch has 

 also been carefully investigated during the year and impor- 

 tant data has been secured. 



During the year the following publications have been issued : 



Bulletin No. 8.— Methods of Milking. 



