504 United States. 



dendrological line, however, namely the 10th volume of 

 the XII Census (1880) on the Forests of North America; 

 Micheaux and Nuttall's North American Silva in 

 5 volumes, 1865 ; and C. S. Sargent's Silva of the United 

 States, in 14 magnificent volumes, three publi- 

 cations which can take rank with any similar liter- 

 ature anywhere. 



INSULAR POSSESSIONS. 



The Spanish War, in 1898, brought to the United 

 States new outlying territory, over 150,000 square 

 miles, in three locations, the relationship as regards 

 government varying in the three cases, namely Porto 

 Rico, the Sandwich Islands, and the Philippine Islands, 

 besides several smaller islands in the Pacific Ocean. 



While the latter are only temporarily under control 

 or tutelage of the United States, and are expected 

 sooner or later to attain complete self government, 

 Hawaii was annexed as a Territory in the same sense 

 as all other Territories, the inhabitants having become 

 citizens of the United States, while Porto Rico is a 

 dependency with partial self-government, but its in- 

 habitants do not enjoy citizenship in the States. 



All these islands are located in the tropics and hence 

 the composition of the forest is of tropical species. 



Commercially, the forests of Porto Rico and of 

 Hawaii are relatively of little value, but their pro- 

 tective value is paramount, and a conservative policy 

 is needed in order to preserve the water supply for 

 agricultural use (sugar plantations in Hawaii) and to 

 prevent erosion. 





